TY  - JOUR
AU  - Everitt, William Norrie
TI  - On the transformation theory of ordinary second-order linear symmetric differential expressions
JO  - Czechoslovak Mathematical Journal
PY  - 1982
SP  - 275
EP  - 306
VL  - 32
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1982.101802/
DO  - 10.21136/CMJ.1982.101802
LA  - en
ID  - 10_21136_CMJ_1982_101802
ER  -