différenciation (1) Differentiation (1) Development (1) Employment (1) Breeding (1) Assaying (1) Methods (1) Statistics (1) Decision support systems (1) Groundwater (1) Social sciences (1) Science (1) Nitrates (1) Land use (1) Land settlement (1) Inheritance and succession (1) Contamination (Technology) (1) Methods (1) Statistics (1) Location (1) Mathematical models (1) Research (1) Analysis (1) Science (1) Evolution (1) Organization (1) Occupations (1) Animales--Mejora genética (1) Colonización interior (1) Sistemas de ayuda a la decisión (1)