Media type: E-Article Title: Chain Blockers and Convoluted Catalan Numbers Contributor: Ahmad, Sarfraz; Welker, Volkmar Published: Springer Science and Business Media LLC, 2016 Published in: Order, 33 (2016) 2, Seite 347-358 Language: English DOI: 10.1007/s11083-015-9370-z ISSN: 0167-8094; 1572-9273 Keywords: Computational Theory and Mathematics ; Geometry and Topology ; Algebra and Number Theory Origination: Footnote: