Fajardo Quesada, Annier Jesús, Eduardo Antonio Hernández González, René Herrero Pacheco, and Lisannia Virgen Beritán Yero. 2025. “Chapter 7. Heat Maps: Representing Research Density”. In Applied Bibliometrics. From Data to Publication, edited by Annier Jesús Fajardo Quesada, Eduardo Antonio Hernández González, René Herrero Pacheco, and Lisannia Virgen Beritán Yero, 105-10. AG Editor. https://doi.org/10.62486/.