webcal://dev.calendar.students.cs.unibo.it/cal/8015/1
webcal://dev.calendar.students.cs.unibo.it/exams/8015/1
webcal://dev.calendar.students.cs.unibo.it/cal/8015/2
webcal://dev.calendar.students.cs.unibo.it/exams/8015/2
webcal://dev.calendar.students.cs.unibo.it/cal/8015/3
webcal://dev.calendar.students.cs.unibo.it/exams/8015/3