Lara M.D. Sustainable management of natural resources : mathematical models and methods / M. D. Lara, L. Doyen, 2008 r=on-line. - Текст : электронный.
De Lara M. Sustainable management of natural resources. Mathematical models and methods / M. De Lara, L. Doyen, 2008. - XI, 266 p. с. - Текст : непосредственный.