Basoper: a web-based open educational resource for the teaching of scheduling algorithms for batch systems - Shishido, Henrique Y; Azevedo, Leonildo José de Melo de; Souza, Paulo Sérgio Lopes de; Estrella, Júlio Cezar; Bruschi, Sarita Mazzini (Congreso Internacional de Informática Educativa - TISE, 2015)