Spatial and temporal variations of atmospheric aerosol optical thickness in northwestern Mexico

Ricardo M. Llamas, Roberto Bonifaz, Mauro Valdés, David Riveros-Rosas, Amando Leyva-Contreras

321-341

A geostatistical re-interpretation of gravity surveys in the Yagoua, Cameroon region

Philippe Njandjock Nouck, Chamberlin Kenfack, Ahmad Diab Diab, Kasi Njeudjang, Larissa Jorelle Meli'I, Rodrigue Kamseu

365-373

Relationship between age of waste and natural electric potential generation in Sanitary Landfill

César Augusto Moreira, Antonio Celso de Oliveira Braga, Letícia Hirata Godoy, Diego de Sousa Sardinha

375-383