Prof. Dr. Jost Gippert (Goethe University of Frankfurt) and Dr. Sebastian Drude (Max-Planck-Institute for Psycholinguistics, Nijmegen) are the applicants and coordinators of the Aché Documentation Project (ADOP, 2008-2011) and of the Aché Language Studies Project (ALSP, 2012-2014).

Research is being conducted by Eva-Maria Rößler (Instituto de Estudos da Linguagem at the Universidad Estadual de Campinas, Brasil), Jan David Hauck (University of California, Los Angeles), and Warren Thompson (University of Michigan, Ann Arbor).

Ms. Rößler is currently developing her doctoral thesis under orientation of Filomena Spatti Sandalo, a specialist in Guaycuruan languages and formal linguistic description. She is responsible for the linguistic aspects of language documentation and description. Within ALSP, she is carrying out a study of the structural distinction between Aché and other languages of the Tupi-Guarani language family, in order to understand possible results of language contact and to further clarify the genetic classification of Aché.

Mr. Hauck and Mr. Thompson are responsible for data collection and the anthropological aspects of the documentation.

Mr. Hauck is a linguistic anthropologist interested in the impact of language ideologies and socialization patterns on language change. Within ALSP he is carrying out a language socialization study with Aché children to investigate the mechanisms promoting language shift in the Aché communities.

Mr. Thompson is a social anthropologist. His research interests involve cosmology and religious change. His work within the ALS-Project examines ethnobiological categories and modes of production between the Aché and Guaraní.