Agricultura urbana y el rol de la planificación de las ciudades./ Urban agriculture and the role of urban planning

by Camilo Villagrán Oyarzún, Ken Yan Qiu Sun
Published 2013-12-01

Flash Smelting Copper Concentrates Spectral Emission Measurements

by Luis Arias, Sergio Torres, Carlos Toro, Eduardo Balladares, Roberto Parra, Claudia Loeza, Camilo Villagrán, Pablo Coelho
Published 2018-06-01