| Publication | Date of Publication | Type |
|---|
| Evaluating different groups of mutual funds using a metafrontier approach: ethical vs. non-ethical funds | 2023-11-15 | Paper |
| Malmquist productivity indices and plant capacity utilisation: new proposals and empirical application | 2022-08-01 | Paper |
| Procedures for ranking technical and cost efficient units: with a focus on nonconvexity | 2022-03-11 | Paper |
| Cost functions are nonconvex in the outputs when the technology is nonconvex: convexification is not harmless | 2021-11-09 | Paper |
| Plant capacity notions in a non-parametric framework: a brief review and new graph or non-oriented plant capacities | 2021-11-08 | Paper |
| Plant Capacity and Attainability: Exploration and Remedies | 2020-10-26 | Paper |
| Metafrontier productivity indices: questioning the common convexification strategy | 2020-01-23 | Paper |
| Enumeration algorithms for FDH directional distance functions under different returns to scale assumptions | 2019-03-06 | Paper |
| Metatechnology frontier and convexity: a restatement | 2019-01-28 | Paper |
| Short- and long-run plant capacity notions: definitions and comparison | 2019-01-18 | Paper |
| Congestion in production correspondences | 2018-08-07 | Paper |
| Testing general and special Färe-Primont indices: a proposal for public and private sector synthetic indices of European regional expenditures and tourism | 2018-07-25 | Paper |
| Global and local scale characteristics in convex and nonconvex nonparametric technologies: a first empirical exploration | 2018-05-25 | Paper |
| Clelia curves, twisted surfaces and Plücker’s conoid in Euclidean and Minkowski 3-space | 2016-12-20 | Paper |
| Twisted surfaces with null rotation axis in Minkowski 3-space | 2016-09-08 | Paper |
| Comparing Malmquist and Hicks-Moorsteen productivity indices: exploring the impact of unbalanced vs. balanced panel data | 2016-06-24 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3194963 | 2015-10-20 | Paper |
| Portfolio selection with skewness: a comparison of methods and a generalized one fund result | 2015-07-28 | Paper |
| Nonparametric cost and revenue functions under constant economies of scale: an enumeration approach for the single output or input case | 2015-02-25 | Paper |
| A note on a variant of radial measure capable of dealing with negative inputs and outputs in DEA | 2015-02-19 | Paper |
| Determining Maximal Reference Set in Data Envelopment Analysis | 2014-07-09 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4981477 | 2014-06-24 | Paper |
| SOLUTION METHODS FOR NONCONVEX FREE DISPOSAL HULL MODELS: A REVIEW AND SOME CRITICAL COMMENTS | 2014-04-25 | Paper |
| https://portal.mardi4nfdi.de/entity/Q2866247 | 2013-12-13 | Paper |
| https://portal.mardi4nfdi.de/entity/Q2857228 | 2013-10-31 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4648094 | 2012-11-08 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3091624 | 2011-09-10 | Paper |
| Geometric representation of the mean-variance-skewness portfolio frontier based upon the shortage function | 2011-03-22 | Paper |
| https://portal.mardi4nfdi.de/entity/Q5446810 | 2008-03-06 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4533243 | 2002-06-09 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4498309 | 2002-02-24 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4513505 | 2000-11-16 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4938695 | 2000-05-23 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4239765 | 1999-05-25 | Paper |
| Minimal homothetical hypersurfaces of a semi-Euclidean space | 1996-09-11 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4884340 | 1996-07-11 | Paper |
| Ruled surfaces of finite type in 3-dimensional Minkowski space | 1996-06-18 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4867735 | 1996-03-31 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4867748 | 1996-03-31 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4867759 | 1996-03-31 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4863867 | 1996-02-22 | Paper |
