URN:NBN:SI:doc-YVKX9XUC2013Terwilliger, PaulWorawannotai, Chalermpongdocuments/casopisje/ars-mathematica-contemporanea/16790873a.pdfdocuments/doc/Y/URN_NBN_SI_doc-YVKX9XUC_001.pdfdocuments/doc/Y/URN_NBN_SI_doc-YVKX9XUC_001.txt26articlestr. 409-417167908731855-3966URN:NBN:SI:doc-YVKX9XUCengDruštvo matematikov, fizikov in astronomov SlovenijeArs mathematica contemporaneaBYdown-up algebradual polar graphdual polar spaceuniform posetAugmented down-up algebras and uniform posets