Proceedings - Mathematical Sciences
Proceedings - Mathematical Sciences > 1998 > 108 > 1 > 1-12
Proceedings - Mathematical Sciences > 2009 > 119 > 5 > 571-592
Proceedings - Mathematical Sciences > 2013 > 123 > 3 > 361-363
Proceedings - Mathematical Sciences > 2018 > 128 > 1 > 1-21