Austrian Speleological Association (VOH) Austria Die Hohle Vol.1 No.1 January 1950 Vol.1 No.2 May 1950 Vol.1 No.3 August 1950 Vol.1 No.4 November 1950 Vol.2 No.1 February 1951 Vol.2 No.2 June 1951 Vol.2 No.3 November 1951 Vol.2 No.4 December 1951 Vol.3 No.1 April 1952 Vol.3 No.2 July 1952 Vol.3 No.3/4 November 1952 Vol.4 No.1 March 1953 Vol.4 No.2 July 1953 Vol.4 No.3 September 1953 Vol.4 No.4 December 1953 Vol.5 No.1 May 1954 Vol.5 No.2 June 1954 Vol.5 No.3/4 September 1954 Vol.6 No.1 February 1955 Vol.6 No.2 April 1955 Vol.6 No.3 September 1955 Vol.6 No.4 December 1955 Vol.7 No.1 February 1956 Vol.7 No.2 April 1956 Vol.7 No.3 July 1956 Vol.7 No.4 December 1956 Vol.8 No.1 March 1957 Vol.8 No.2 May 1957 Vol.8 No.3 August 1957 Vol.8 No.4 November 1957 Vol.9 No.1 March 1958 Vol.9 No.2 June 1958 Vol.9 No.3 September 1958 Vol.9 No.4 December 1958 Vol.10 No.1 March 1959 Vol.10 No.2 June 1959 Vol.10 No.3 September 1959 Vol.10 No.4 December 1959 Vol.11 No.1 March 1960 Vol.11 No.2 June 1960 Vol.11 No.3 October 1960 Vol.11 No.4 December 1960 Vol.12 No.1 February 1961 Vol.12 No.2/3 September 1961 Vol.12 No.4 December 1961 Vol.13 No.1 March 1962 Vol.13 No.2 June 1962 Vol.13 No.3 September 1962 Vol.13 No.4 December 1962 Vol.14 No.1 January 1963 Vol.14 No.2 June 1963 Vol.14 No.3 September 1963 Vol.14 No.4 December 1963 Vol.15 No.1 March 1964 Vol.15 No.2 June 1964 Vol.15 No.3 September 1964 Vol.15 No.4 December 1964 Vol.16 No.1 March 1965 Vol.16 No.2 June 1965 Vol.16 No.3 September 1965 Vol.16 No.4 December 1965 Vol.17 No.1 March 1966 Vol.17 No.2 June 1966 Vol.17 No.3 September 1966 Vol.17 No.4 December 1966 Vol.18 No.1 March 1967 Vol.18 No.2 June 1967 Vol.18 No.3 September 1967 Vol.18 No.4 December 1967 Vol.22 No.1 March 1971 Vol.22 No.2 June 1971 Vol.22 No.3 September 1971 Vol.22 No.4 December 1971 Vol.23 No.1 March 1972 Vol.23 No.2 June 1972 Vol.23 No.3 September 1972 Vol.23 No.4 December 1972 Vol.24 No.1 March 1973 Vol.24 No.2 June 1973 Vol.24 No.3 September 1973 Vol.24 No.4 December 1973 Vol.25 No.1 March 1974 Vol.25 No.2 June 1974 Vol.25 No.3 October 1974 Vol.25 No.4 December 1974 Vol.26 No.1 May 1975 Vol.26 No.2/3 September 1975 Vol.26 No.4 December 1975 Vol.27 No.1 March 1976 Vol.27 No.2 July 1976 Vol.27 No.3 September 1976 Vol.27 No.4 December 1976 Vol.28 No.1 April 1977 Vol.28 No.2 August 1977 Vol.28 No.3 October 1977 Vol.28 No.4 1977 MISSING! Vol.29 No.1 May 1978 Vol.29 No.2 July 1978 Vol.29 No.3 November 1978 Vol.29 No.4 December 1978 Vol.30 No.1 May 1978 Vol.30 No.2 August 1978 Vol.30 No.3 October 1978 Vol.30 No.4 December 1979 Vol.31 No.1 April 1980 Vol.31 No.2,3,4 1980 Vol.32 No.1,2,3,4 1981 Vol.33 No.1,2,3,4 1982 Vol.34 No.1,2,3,4 1983 Vol.35 No.1,2,3/4 1984 Vol.36 No.1,2,3,4 1985 Vol.37 No.1,2,3,4 1986 Vol.38 No.1,2,3,4 1987 Vol.39 No.1,2,3,4 1988 Vol.40 No.1,2,3,4 1989 Vol.41 No.1,2,3,4 1990 Vol.42 No.1,2,3,4 1991 Vol.43 No.1,2,3,4 1992 Vol.44 No.1,2,3,4 1993 Vol.45 No.1,2,3,4 1994 Vol.46 No.1,2,3,4 1995 Vol.47 No.1,2,3,4 1996 Vol.48 No.1,2,3,4 1997 Vol.49 No.1,2,3,4 1998 Vol.50 No.1,2,3,4 1999 Vol.51 No.1,2,3,4 2000 Vol.52 No.1,2,3,4 2001 Vol.53 No.1,2,3,4 2002 Vol.54 No.1,2,3,4 2003 Vol.54 No.1/4 2004 Vol.56 No.1/4 2005 Vol.57 No.1/4 2006 Vol.58 No.1/4 2007 Vol 59 No.1/4 2008 Vol 60 No.1/4 2009 Vol 61 No.1/4 2010 Vol 62 N0.1/4 2011 Vol 63 N0.1/4 2012 Vol 64 No.1/4 2013 Vol 65 No.1/4 2014 Vol 66 No.1/4 2015 Vol 67 No.1/4 2016 Vol 68 No.1/4 2017 Vol 69 No.1/4 2018 Vol 70 No.1/4 2019