TY  - BOOK
AU  - Frank L.S.
TI  - Singular perturbationsi: spaces and singular perturbations on manifolds without boundary 
U1  - 515/.352 20
PY  - 1990///
CY  - Amsterdam
PB  - Elsevier science
KW  - Singular perturbations (Mathematics)
KW  - Giải tích
KW  - Toán học
ER  -