Kashfiyot
Xizmatlar
Identifikatsiya
Ishlab chiquvchilar uchun
Ekotizim
2 ta ish
National Autonomous University of Mexico
Charles L. Cantrell, Laura Abate, Frank R. Fronczek +3
Leovigildo Quijano, José S. Calderón, Generosa Gómez +3