1 - Elliptic pseudo-differential operators : an abstract theory
Cordes, Heinz Otto (1925-....)

Cote : [47.5 COR 79]

2 - Lineare differential-operatoren
Neumark, Mark Aronovitch (1909-1978)   /   Cordes, Heinz Otto (1925-....)   /   Rühs, Fritz

Cote : [42.4 NEU 60]