Please be aware that Lectures with the same date or starting on the very first of a month/a year may not be delivered at that very date,
but - missing of an exact date - were labelled with the publication date of the book, from which they were extracted (in brackets).
1990/10/30 AuthorityToUnderstandTheHolyQuran (30.10.90)
1990/10/30 HowNotToBehurtInWar
1990/05/01 DivineLove (May 1990)
1990/02/01 Unruhestifter (1.2.1990)