Moraleda, Enrique, Cristina Broglio, Fernando Rodríguez, and Antonia Gómez. 2013. “Development of Different Spatial Frames of Reference for Orientation in Small-Scale Environments”. Psicothema 25 (Número 4):468-75. https://reunido.uniovi.es/index.php/PST/article/view/10075.