Ayres, C., Ferreira, C., & Arroio, A. (2010). THE USAGE OF A SIMULATION TO STUDY INTERMOLECULAR FORCES: SOME FINDINGS. Problems of Education in the 21st Century , Problems of Education in the 21st Century , 24. presented at the October/2010. Retrieved from https://journals.indexcopernicus.com/search/article?articleId=2594528

Ferreira, C., Baptista, M., & Arroio, A. (2011). VISUAL TOOLS IN TEACHING LEARNING SEQUENCES FOR SCIENCE EDUCATION. Problems of Education in the 21st Century, Problems of Education in the 21st Century, 37. presented at the December/2011. doi:https://doi.org/10.33225/pec/11.37.48