Holdings
5.1954,1-2,4-12; 6.1955,2-12; 7.1956; 8.1957,1,3-11; 9.1958 - 10.1959; 11.1960,1-2,4-6; 17.1966,5-6,9; 18.1967,5; 20.1969,4 - 43.1992; 44.1993,1-4,7,10-12; [45.]1994,1,3-12; 46.1995 -
[Lückenhaft. - Jubiläumsbeil. 1999: "50 Jahre Bus-Kompetenz"]