The MapBiomas Amazonia data is public, open and free by simply refering the source, observing the following format:
“MapBiomas Amazonia Project - Collection [version] of Pan-Amazonian Annual Land Cover & Land Use Map Series, accessed on [date] through the link: [LINK]”
“MapBiomas Amazonia Project is a multi-institutional initiative of RAISG to generate annual land cover and land use maps using automated classification of satellite images. The complete description of the project can be found at http://amazonia.mapbiomas.org/”
In case of scientific publications, we suggest you contact the MapBiomas Amazonia team to learn if there are publications already in progress on your particular issue of interest.