TY - BOOK AU - Lovelock,David 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 - Wiley KW - Calculus of tensors KW - Differential forms KW - Calculus of variations N1 - "A Wiley-Interscience publication."; Includes index ER -