Masáková, Zuzana, Edita Pelantová, and Štěpán Starosta. “ITINERARIES INDUCED BY EXCHANGE OF THREE INTERVALS”. Acta Polytechnica 56, no. 6 (December 31, 2016): 462–471. Accessed February 27, 2024. https://ojs.cvut.cz/ojs/index.php/ap/article/view/3794.