TY - JOUR T1 - Methods to verify parameter equality in nonlinear regression models JO - Scientia Agricola A1 - Carvalho, LĂ­dia Raquel de A1 - Pinho, Sheila Zambello de A1 - Mischan, Martha Maria SN - 0103-9016 UL - 10.1590/S0103-90162010000200014 VL - 67 Y1 - 2010 PB - Brasil ER -