JKU has cancelled lectures already from Wednesday, March 11, so there will be NO presence lecture tomorrow. I'll (try to) post an online-recorded lecture by that time, so you will have the opportunity to watch the video instead
Directly after the regular lecture time (17:00-17:30) I will start a Skype session where you may contact me (Skype name: "schreine") for questions to be answered immediately.
Otherwise, you may also ask questions any time in the Moodle forum; I'll try to respond as quickly as possible. You may also contact me any time per email to agree on a time for a skype call.