Suárez, Álvaro, 		Guisasola, Jenaro, 		Martí, Arturo, AND 		Zuza, Kristina.
" Unified Approach to The Electromagnetic Field: The Role of Sources, Causality and Wave Propagation" <em>European Journal of Physics Education</em> [Online], Volume 14 Number 2 (10 July 2023)