TY  - GEN
AU  - Gjerlov, P [ed.]
AU  - Helms, H.J [ed.]
AU  - Nielsen, Johs [ed.]
ED  - APL Congress 73
TI  - APL congress 73: proceedings..
SN  - 072042089X
U1  - 001.6424 
PY  - 1973///
CY  - Amsterdam
PB  - North-Holland
ER  -