Previous events

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7 8 9 
10 11 12 
13 14 15 
16 17 18 
19 20 21 
22 23 24 
25 26 27 
28 29 30 
31 32 33
34 35 36 
37 38 39 
40 41 42 
43 44 45 
46 47 48 
49 50 51 
52 53 54 
55 56 57Feb. 1975, Clausthal
58Jan. 1976, Göttingen59May 1976, Hanover60 
61June 1977, Brunswick62Feb. 1978, Hamburg63June 1978, Clausthal
64Jan 1979, Hanover65June 1979, Berlin66Jan 1980, Göttingen
67June 1980, Brunswick68Feb 1981, Hamburg69July 1981, Hanover
70 71June 1982, Clausthal72Jan. 1983, Göttingen
73 74Nov. 1983, Hamburg75 
76 77June 1985, Clausthal78 
79 80Jan. 1987, Hamburg81 
82 83June 1988, Clausthal84 
85 86Jan. 1990, Hamburg87 
88 89June 1991, Clausthal90 
91 92 93 
94 95June 1994; Magdeburg96 
97 98 99Jun. 1996, Hamburg
100 101 102 
103 104 105 
106June 2000; Magdeburg107WS 00/01; Göttingen108Jun. 2001; Hamburg
109Feb. 2002, Berlin/Bremen110SS 02, Kassel111WS 02/03, Braunschweig
112SS 03, Rostock/Hamburg113WS 03/04, Bremen114SS 04, Clausthal/Göttingen
115Feb. 2005, Hannover/Kassel116July 2005; Magdeburg117Feb. 2006, Hamburg
118SS 06, Berlin119WS 06/07, Göttingen120June 2007, Kassel/Hanover
121Feb. 2008, Braunschweig/Magdeburg122Oct. 2008, Hamburg123Jan. 2009, Bremen/Berlin
124Jul. 2009, Clausthal/Göttingen125Feb. 2010, Hanover/Kassel126Jun. 2010, Magdeburg/Braunschweig
127Jan. 2011, Rostock/Hamburg128July 2011, Berlin/Bremen129Feb. 2012, Göttingen/Clausthal
130June 2012, Kassel/Hanover131January 2013 Braunschweig/Magdeburg132

June 2013, Hamburg/Rostock

133January 2014, Bremen/Berlin134July 2014, Clausthal/Göttingen135

January 2015, Hanover/Kassel

136

July 2015, Magdeburg/Braunschweig

137January 2016, Hamburg/Rostock138July 2016, Berlin/Bremen
139

February 2017, Göttingen/Clausthal

140July 2017, Kassel/Hanover141

February 2018, Braunschweig/Margdeburg

142July 2018, Rostock/Hamburg143February 2019, Bremen/Berlin144June 2019, Clausthal/Göttingen
145February 2020, Hanover/Kassel