MapBiomas Chaco data are public, open and free by simple quotation of the source, observing and following the format below.
"MapBiomas Chaco Project - Collection  of the Annual Chaco Coverage and Land Use Series, acquired [date] through the link: [LINK]"
"Project MapBiomas Chaco - is a multi-institutional initiative to generate annual cover and land use maps from automatic classification processes applied to satellite images." The full description of the project can be found at http://chaco.mapbiomas.org”.
In the case of scientific publications, it is suggested to contact the MapBiomas Chaco team to see if there are already publications in progress on the proposed topic.