Remarks to an incidence theorem of W. Kroll
The author establishes the equivalence of a projective formulation of the configuration theorem introduced by \textit{W. Kroll} [ibid., 39-53 (1993; see the paper above)] (in which conclusion (4) is dropped) with Pappus' theorem in a projective plane. He also proves that a Moufang plane which satisfies a certain specialization of Kroll's configuration theorem is Pappian.
scientific article; zbMATH DE number 495251