TY  - DATA
AU  - Shiing-shen Chern
TI  - Partial Differential Equations
T2  - Lecture Notes in Mathematics
SN  - 9783540391074
PY  - 1988///
CY  - Heidelberg
PB  - Springer Berlin
KW  - Mathematics and Statistics
UR  - https://doi.org/10.1007/BFb0082920
ER  -