Ghoussoub Nassif Self-dual partial differential systems and their variational principles. Ghoussoub Nassif - New York Springer 2009 - xiv,354p. cm. ISBN: 3310.4445000000001 Standard No.: 99202 Source: 27, 16/09/2009, Better Book Service Textual Subjects--Topical Terms: Mathematics Dewey Class. No.: B334, P9