1. Esbozo de la fonologia del Tzeltal de Tenejapa, Chiapas;Berlin;Estudios de Cultura Maya,1962b
2. A possible paradigmatic structure for Tzeltal pronominals;Berlin;Anthropological Linguistics,1963a
3. Some semantic features of reduplication in a dialect of Tzeltal;Berlin;International Journal of American Linguistics,1963b
4. Descriptive semantics of Tzeltal numeral classifiers;Berlin;American Anthropologist,1964