41 http://hdl.handle.net/10338.dmlcz/116914 1991 Announcement. [Czechoslovak Mathematical Journal typeset in TeX] http://hdl.handle.net/10338.dmlcz/102508 Announcement. [Czechoslovak Mathematical Journal typeset in TeX] Mon, 09 Jun 2008 15:43:11 GMT Sixty years of Josef Král http://hdl.handle.net/10338.dmlcz/102507 Sixty years of Josef Král Mon, 09 Jun 2008 15:43:06 GMT Ivo Vrkoč sexagenarian http://hdl.handle.net/10338.dmlcz/102506 Ivo Vrkoč sexagenarian Mon, 09 Jun 2008 15:43:01 GMT Correction to the paper “Selfduality of the system of intervals of a partially ordered set” http://hdl.handle.net/10338.dmlcz/102505 Correction to the paper “Selfduality of the system of intervals of a partially ordered set” Mon, 09 Jun 2008 15:42:56 GMT