TY  - DATA
AU  - Krzysztof P. Rybakowski
TI  - The Homotopy Index and Partial Differential Equations
SN  - 9783642728334
PY  - 1987///
PB  - Springer Berlin Heidelberg
KW  - Mathematics and Statistics
UR  - https://doi.org/10.1007/978-3-642-72833-4
ER  -