TY  - JOUR
AU  - Čadek, Martin
TI  - Pointwise transformations of linear differential equations
JO  - Archivum mathematicum
PY  - 1990
SP  - 187
EP  - 200
VL  - 26
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ARM_1990__26_4_a0/
LA  - en
ID  - ARM_1990__26_4_a0
ER  -