Ectomycorrhizal colonization of Alnus acuminata Kunth in northwestern Argentina in relation to season and soil parameters Alejandra Becerra, Karin Pritsch, Nilda Arrigo, Martha Palma and Norberto BartoloniAnn. For. Sci., 62 4 (2005) 325-332DOI: https://doi.org/10.1051/forest:2005027