TY  - JOUR
AU  - Teresa Regińska
TI  - Approximation of eigenvalues of nonselfadjoint problems on an infinite interval
JO  - Mathematica Applicanda
PY  - 1979
SP  -  71
EP  - 77
VL  - 7
IS  - 14
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.14708/ma.v7i14.1432/
DO  - 10.14708/ma.v7i14.1432
LA  - pl
ID  - 10_14708_ma_v7i14_1432
ER  -