@conference {materna_p2008:2177, title = {Some Problems Connected with a Procedural Theory of Concepts}, booktitle = {Jednotliviny, v{\v s}eobecniny a v{\'y}znamy}, number = {1}, year = {2008}, note = {org-01-2008}, pages = {123-131}, publisher = {Filozofick{\'y} {\'u}stav SAV}, organization = {Filozofick{\'y} {\'u}stav SAV}, address = {Bratislava}, isbn = {ISBN 978-80-969770-1-7}, author = {Materna, Pavel}, editor = {Zouhar, Mari{\'a}n} }