| Publication | Date of Publication | Type |
|---|
| Guides and shortcuts in graphs | 2013-12-06 | Paper |
| Distance-hereditary graphs and signpost systems | 2010-03-29 | Paper |
| Axiomatic characterization of the interval function of a graph | 2009-06-17 | Paper |
| On the distance function of a connected graph | 2009-05-06 | Paper |
| A new approach to chordal graphs | 2009-03-31 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3616002 | 2009-03-24 | Paper |
| The hamiltonian chromatic number of a connected graph without large hamiltonian-connected subgraphs | 2009-02-09 | Paper |
| Travel groupoids | 2009-02-09 | Paper |
| Signpost systems and spanning trees of graphs | 2009-02-09 | Paper |
| Distance defined by spanning trees in graphs | 2008-06-18 | Paper |
| The interval function of a connected graph and road systems | 2007-06-26 | Paper |
| Leaps: an approach to the block structure of a graph | 2006-10-16 | Paper |
| A Characterization of the Interval Function of a (Finite or Infinite) Connected Graph | 2006-02-14 | Paper |
| On Properties of a Graph that Depend on its Distance Function | 2006-02-14 | Paper |
| On signpost systems and connected graphs | 2006-02-14 | Paper |
| https://portal.mardi4nfdi.de/entity/Q5708543 | 2005-11-18 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4677963 | 2005-05-23 | Paper |
| On Hamiltonian colorings of graphs | 2005-04-18 | Paper |
| Hamiltonian colorings of graphs | 2005-02-22 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4828798 | 2004-11-26 | Paper |
| Radio k-colorings of paths | 2004-10-27 | Paper |
| Modular and median signpost systems and their underlying graphs | 2004-10-27 | Paper |
| Intervals and steps in a connected graph | 2004-10-01 | Paper |
| The Directed Geodetic Structure of a Strong Digraph | 2004-09-07 | Paper |
| An axiomatic approach to metric properties of connected graphs | 2004-03-21 | Paper |
| A theorem for an axiomatic approach to metric properties of graphs | 2004-03-21 | Paper |
| Greedy \(F\)-colorings of graphs | 2003-12-04 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4430837 | 2003-10-13 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4783803 | 2002-12-09 | Paper |
| New proof of a characterization of geodetic graphs | 2002-10-15 | Paper |
| https://portal.mardi4nfdi.de/entity/Q2760916 | 2001-12-16 | Paper |
| The set of geodesics in a graph | 2001-07-18 | Paper |
| https://portal.mardi4nfdi.de/entity/Q2713706 | 2001-06-10 | Paper |
| An algebraic characterization of geodetic graphs | 2000-11-13 | Paper |
| A new proof of a characterization of the set of all geodesics in a connected graph | 2000-11-13 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4955672 | 2000-05-21 | Paper |
| On the set of all shortest paths of a given length in a connected graph | 1998-12-02 | Paper |
| Geodesics and steps in a connected graph | 1998-09-28 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4887170 | 1997-01-13 | Paper |
| A characterization of geodetic graphs | 1996-07-14 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4864765 | 1996-06-18 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4864781 | 1996-02-25 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4321839 | 1995-08-27 | Paper |
| A characterization of the interval function of a connected graph | 1994-08-25 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4301670 | 1994-08-14 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4277394 | 1994-02-07 | Paper |
| Local properties and upper embeddability of connected multigraphs | 1994-01-31 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4203484 | 1993-09-05 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4027184 | 1993-02-21 | Paper |
| $N_2$-locally connected graphs and their upper embeddability | 1993-01-16 | Paper |
| Route systems and bipartite graphs | 1992-06-26 | Paper |
| On certain extensions of intervals in graphs | 1990-01-01 | Paper |
| Hypergraphs and intervals. III. | 1988-01-01 | Paper |
| On a $1$-factor of the fourth power of a connected graph | 1988-01-01 | Paper |
| Embedding $m$-quasistars into $n$-cubes | 1988-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3033793 | 1986-01-01 | Paper |
| Two edge-disjoint Hamiltonian cycles of powers of a graph | 1985-01-01 | Paper |
| On locally quasiconnected graphs and their upper embeddability | 1985-01-01 | Paper |
| On 2-cell embeddings of graphs with minimum numbers of regions | 1985-01-01 | Paper |
| On quasistars in $n$-cubes | 1984-01-01 | Paper |
| Hypergraphs and intervals. II. | 1984-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3708051 | 1984-01-01 | Paper |
| Edge-disjoint 1-factors in powers of connected graphs | 1984-01-01 | Paper |
| On upper embeddability of complementary graphs | 1983-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3041220 | 1983-01-01 | Paper |
| A Note on Structural Homonymy and Word Order | 1983-01-01 | Paper |
| A note on upper embeddable graphs | 1983-01-01 | Paper |
| On a certain numbering of the vertices of a hypergraph | 1983-01-01 | Paper |
| Algebraic properties of Husimi trees | 1982-01-01 | Paper |
| Every connected, locally connected graph is upper embeddable | 1981-01-01 | Paper |
| Regular factors in powers of connected graphs | 1981-01-01 | Paper |
| Hypergraphs and intervals | 1981-01-01 | Paper |
| On $1$-factors in the cube of a graph | 1981-01-01 | Paper |
| A new characterization of the maximum genus of a graph | 1981-01-01 | Paper |
| On the existence of a $3$-factor in the fourth power of a graph | 1980-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3903036 | 1980-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3926069 | 1980-01-01 | Paper |
| A note on 1-factors in graphs | 1979-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3859823 | 1979-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3897080 | 1979-01-01 | Paper |
| On eulerian subgraphs of complementary graphs | 1979-01-01 | Paper |
| On the existence of 1-factors in partial squares of graphs | 1979-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4159403 | 1978-01-01 | Paper |
| On pancyclic line graphs | 1978-01-01 | Paper |
| Some sufficient conditions for the existence of a 1-factor | 1978-01-01 | Paper |
| On partition graphs and generalizations of line graphs | 1977-01-01 | Paper |
| On induced subgraphs of a block | 1977-01-01 | Paper |
| An upper bound for the minimum degree of a graph | 1977-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4167613 | 1977-01-01 | Paper |
| On the minimum degree and edge-connectivity of a graph | 1976-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4097316 | 1976-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4111620 | 1976-01-01 | Paper |
| A generalization of Hamiltonian cycles for trees | 1976-01-01 | Paper |
| A theorem on $2$-connected graphs | 1975-01-01 | Paper |
| On tree-complete graphs | 1975-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4113868 | 1975-01-01 | Paper |
| On cubes and dichotomic trees | 1974-01-01 | Paper |
| Reconstruction of a tree from certain maximal proper subtrees | 1974-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4775898 | 1974-01-01 | Paper |
| On the minimum number of vertices and edges in a graph with a given number of spanning trees | 1973-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q5668505 | 1973-01-01 | Paper |
| On the line graph of the square and the square of the line graph of a connected graph | 1973-01-01 | Paper |
| On connected graphs containing exactly two points of the same degree | 1973-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q5650694 | 1972-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q5657660 | 1972-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q5661153 | 1972-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q5618400 | 1971-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q5618908 | 1971-01-01 | Paper |
| Left-right double trees | 1971-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q5608787 | 1970-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q5646392 | 1970-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q5646393 | 1970-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q5588658 | 1969-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q5616725 | 1969-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q5549812 | 1968-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q5561965 | 1967-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q5599831 | 1966-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q5609387 | 1966-01-01 | Paper |
