TY - JOUR T1 - Pozor na l'Hospitala! A1 - Kubáček, Zbyněk JA - Obzory matematiky, fyziky a informatiky Y1 - 2001 VL - 30 IS - 4 SP - 1 EP - 15 SN - 1335-4981 N2 - The article is a short reviey of possible mistakes that can be done using the l'Hospital rule. ER -