TY - BOOK AU - Lovelock,David AU - Rund,Hanno TI - Tensors, differential forms, and variational principles T2 - Pure and applied mathematics SN - 0471548405 PY - 1975/// CY - New York PB - John Wiley & Sons KW - Calculus of tensors KW - Differential forms KW - Calculus of variations N1 - Includes index and bibliography (p. 355-358) ER -