On the system of all maximal chains (antichains) of a graph. D. Kurepa (1976) Publications de l'Institut Mathématique [Elektronische Ressource]
On the theory of Pfaffian orientations. I: Perfect matchings and permanents. Gallucio, Anna, Loebl, Martin (1999) The Electronic Journal of Combinatorics [electronic only]
On the theory of Pfaffian orientations. II: T -joins, k -cuts, and duality of enumeration. Galluccio, Anna, Loebl, Martin (1999) The Electronic Journal of Combinatorics [electronic only]
On the volume of a certain polytope. Chan, Clara S., Robbins, David P., Yuen, David S. (2000) Experimental Mathematics
On the volume of the polytope of doubly stochastic matrices. Chan, Clara S., Robbins, David P. (1999) Experimental Mathematics
On two combinatorial identities Leonard Carlitz, Josef Kaucký, Jaromír Vosmanský (1982) Mathematica Slovaca
On Zeilberger's constant term for Andrew's TSSCPP theorem. Xin, Guoce (2011) The Electronic Journal of Combinatorics [electronic only]
On-line Ramsey theory. Grytczuk, J.A., Hałuszczak, M., Kierstead, H.A. (2004) The Electronic Journal of Combinatorics [electronic only]
Operatorenkalkül über freien Monoiden I: Strukturen. P. Kirschenhofer, G. Baron (1981) Monatshefte für Mathematik
Operatorenkalkül über freien Monoiden II: Binominalsysteme. P. Kirschenhofer, G. Baron (1981) Monatshefte für Mathematik
Operatorenkalkül über freien Monoiden III: Lagrangeinversion und Sheffersysteme. P. Kirschenhofer, G. Baron (1981) Monatshefte für Mathematik
Optimal Penney Ante strategy via correlation polynomial identities. Felix, Daniel (2006) The Electronic Journal of Combinatorics [electronic only]
Orders with ten elements are circle order. Bayon, Roman, Lygeros, Nik, Sereni, Jean-Sébastien (2007) Applied Mathematics E-Notes [electronic only]
Osculating paths and oscillating tableaux. Behrend, Roger E. (2008) The Electronic Journal of Combinatorics [electronic only]
p -adic analysis and classical sequences of numbers. (Analyse p -adique et suites classiques de nombres.) Barsky, Daniel (1981) Séminaire Lotharingien de Combinatoire [electronic only]
Packing densities of patterns. Barton, Reid W. (2004) The Electronic Journal of Combinatorics [electronic only]
Packing patterns into words. Burstein, Alexander, Hästö, Peter, Mansour, Toufik (2003) The Electronic Journal of Combinatorics [electronic only]
Parametric production matrices and weighted succession rules: a Dyck path example. Parviainen, Robert (2007) Journal of Integer Sequences [electronic only]
Parity theorems for statistics on domino arrangements. Shattuck, Mark A., Wagner, Carl G. (2005) The Electronic Journal of Combinatorics [electronic only]