TY - JOUR AU - Maciej Ulas TI - On the diophantine equation $f(x)f(y)=f(z)^2$ JO - Colloquium Mathematicum PY - 2007 SP - 1 EP - 6 VL - 107 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/cm107-1-1/ DO - 10.4064/cm107-1-1 LA - fr ID - 10_4064_cm107_1_1 ER -