TY  - BOOK
AU  - Pontrjagin, Lev S.
TI  - Learning Higher Mathematics: Part I The Method of Coordinates Part II Analysis of the Infinitely Small
SN  - 3540123512
U1  - 515 
PY  - 1984///
CY  - Berlin, Heidelberg
PB  - Springer-Verlag
ER  -