2 http://hdl.handle.net/10338.dmlcz/105272 2 The Hewitt realcompactification of a product (Preliminary communication) http://hdl.handle.net/10338.dmlcz/105285 The Hewitt realcompactification of a product (Preliminary communication) Thu, 05 Jun 2008 20:32:42 GMT Remarks on doubly substochastic rectangular matrices http://hdl.handle.net/10338.dmlcz/105284 Remarks on doubly substochastic rectangular matrices Thu, 05 Jun 2008 20:32:39 GMT Modifications of closure collections http://hdl.handle.net/10338.dmlcz/105283 Modifications of closure collections Thu, 05 Jun 2008 20:32:36 GMT When the product-preserving functors preserve limits http://hdl.handle.net/10338.dmlcz/105282 When the product-preserving functors preserve limits Thu, 05 Jun 2008 20:32:33 GMT