TY  - JOUR
AU  - Zbigniew Lipecki
TI  - Historical remarks on equivalence of functions
JO  - Bulletin of the Polish Academy of Sciences. Mathematics
PY  - 2017
SP  - 93
EP  - 95
VL  - 65
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/ba8107-4-2017/
DO  - 10.4064/ba8107-4-2017
LA  - en
ID  - 10_4064_ba8107_4_2017
ER  -