TY  - GEN
AU  - Olszak, W.
AU  - 
AU  - Sawczuk, A.
AU  - 
TI  - NON-CLASSICAL SHELL PROBLEMS
U1  - 624.9 
PY  - 1964///
CY  - Amsterdam
PB  - North-Holland Pub.
KW  - Roofs, Shell
ER  -