ALVES, Ruy José Válka - KOLBEK, Jiří. Primary succession on quartzite cliffs in Minas Gerais, Brazil. In Biologia. Section A. Section B. Section C, Botany. Zoology. Cellular and molecular biology. ISSN 0006-3088. ISSN 1335-6372. ISSN 1335-6380. ISSN 1335-6399, 2000, roč. 55, č. 1, s. 69-83.