TY  - JOUR
AU  - M. D. Leko
TI  - On the concept of energy in the classical mechanics and relativity
JO  - Matematički vesnik
PY  - 1965
SP  - 173 
VL  - 17
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MV_1965_17_3_a0/
ID  - MV_1965_17_3_a0
ER  -