TY  - JOUR
AU  - Aleksander Strasburger
TI  - Differential operators of gradient type associated with spherical harmonics
JO  - Annales Polonici Mathematici
PY  - 1991
SP  - 161
EP  - 183
VL  - 53
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/ap-53-2-161-183/
DO  - 10.4064/ap-53-2-161-183
LA  - en
ID  - 10_4064_ap_53_2_161_183
ER  -