The MapBiomas Amazonia data is public, open, and free by simply referring to the source, observing the following format:
“MapBiomas Amazonia Project - Collection [version] of 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 the annual land cover and land use maps using an automated classification of satellite images. The complete description of the project can be found at http://amazonia.mapbiomas.org/”
In the 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.