By Nygaard Olav   in Quaestiones Mathematicae

ISSN:1727-933X|29|1|59-72

Taylor & Francis Ltd‎(2006)‎

Access to resources Favorite 19.928486

By Nygaard Olav   Põldvere Märt   in Archiv der Mathematik

ISSN:0003-889X|88|1|57-61

Springer Publishing Company ‎(2007)‎

Access to resources Favorite 13.949614

By Nygaard Olav   Põldvere Märt   in Quaestiones Mathematicae

ISSN:1727-933X|32|1|5-14

Taylor & Francis Ltd‎(2009)‎

Access to resources Favorite 13.949614