21
22
Superior document: Sonderdruck aus Festschrift Rudolf Welser zum 65. Geburtstag
23
Superior document: Sonderdruck aus Imago Hominis, Band II/Nr.4, S. 285-289
24
Superior document: Sonderdruck aus ecolex 2008; S. 718 ff.
25
Published: 2014
26
Published: 2008
27
Published: 2013
28
Published: 2011
29
Published: 2006
30
Published: 2004
31
Published: 2015
32
Published: 2003
33
Superior document: Manzsche Kurzlehrbuch-Reihe 1