Proceedings - Mathematical Sciences
Proceedings - Mathematical Sciences > 2012 > 122 > 1 > 121-128
Proceedings - Mathematical Sciences > 2014 > 124 > 4 > 497-500
Proceedings - Mathematical Sciences > 2017 > 127 > 1 > 91-98
Proceedings - Mathematical Sciences > 2019 > 129 > 2 > 1-11
Proceedings - Mathematical Sciences > 2019 > 129 > 3 > 1-14