TY  - JOUR
AU  - Souilah, Khalid
TI  - Generalized quadratic operators and perturbations
JO  - Mathematica Bohemica
PY  - 2022
SP  - 51
EP  - 63
VL  - 147
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.21136/MB.2021.0010-20/
DO  - 10.21136/MB.2021.0010-20
LA  - en
ID  - 10_21136_MB_2021_0010_20
ER  -