TY - DATA AU - Pedro L. Garcia AU - Antonio Perez-Rendon TI - Differential Geometric Methods in Mathematical Physics T2 - Lecture Notes in Mathematics SN - 9783540478546 PY - 1987/// CY - Heidelberg PB - Springer Berlin KW - Mathematics and Statistics UR - https://doi.org/10.1007/BFb0077312 ER -