Gordon, G. and McMahon, E. (1989) A Greedoid Polynomial Which Distinguishes Rooted Arborescences. Proceedings of the American Mathematical Society, 107, 287-298.
http://dx.doi.org/10.1090/s0002-9939-1989-0967486-0

has been cited by the following article:

• TITLE: Rank Functions of Fuzzy Greedoids

  AUTHORS: Steven J. Tedford

  KEYWORDS: Fuzzy System Models, Greedoids, Fuzzy Rank Function

  JOURNAL NAME: Open Journal of Discrete Mathematics, Vol.5 No.4, August 12, 2015

  ABSTRACT: Fuzzy greedoids were recently introduced as a fuzzy set generalization of (crisp) greedoids. We characterize fuzzy languages which define fuzzy greedoids, give necessary properties and sufficient properties of the fuzzy rank function of a fuzzy greedoid, give a characterization of the rank function for a weighted greedoid, and discuss the rank closure of a fuzzy greedoid.