q -analogue of the Lucas congruence. (Zum q -Analogon der Kongruenz von Lucas.) Strehl, Volker — 1981 Séminaire Lotharingien de Combinatoire [electronic only]
A combinatorial proof of Louck's conjecture. Strehl, Volker — 1988 Séminaire Lotharingien de Combinatoire [electronic only]
Minimal transitive products of transpositions---the reconstruction of a proof of A. Hurwitz. Strehl, Volker — 1996 Séminaire Lotharingien de Combinatoire [electronic only]
Recurrences and Legendre transform. Strehl, Volker — 1992 Séminaire Lotharingien de Combinatoire [electronic only]
Enumeration of Hamiltonian circuits in rectangular grids. Stoyan, Robert; Strehl, Volker — 1995 Séminaire Lotharingien de Combinatoire [electronic only]
Rearrangements of the Symmetric Group and Enumerative Properties of the Tangent and Secant Numbers. Dominique Foata; Volker Strehl — 1974 Mathematische Zeitschrift