TY - JOUR T1 - Basic validation procedures for regression models in QSAR and QSPR studies: theory and application JO - Journal of the Brazilian Chemical Society A1 - Kiralj, Rudolf A1 - Ferreira, Márcia M. C. SN - 0103-5053 UL - 10.1590/S0103-50532009000400021 VL - 20 Y1 - 2009 PB - Brasil ER -