TY - JOUR AU - Berkovits J. AU - Fabry C. TI - An extension of the topological degree in Hilbert space. JO - Abstract and Applied Analysis PY - 2005 SP - 581 EP - 597 VL - 2005 IS - 6 PB - mathdoc UR - https://geodesic-test.mathdoc.fr/articles/10.1155/AAA.2005.581/ DO - 10.1155/AAA.2005.581 LA - en ID - 10_1155_AAA_2005_581 ER -