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Full-text available from the year 1965 to current.
- 2020 Volume 68, Numbers 1 - 4
- 2019 Volume 67, Numbers 1 - 4
- 2018 Volume 66, Numbers 1 - 4
- 2017 Volume 65, Numbers 1 - 4
- 2016 Volume 64, Numbers 1 - 4
- 2015 Volume 63, Numbers 1 - 4
- 2014 Volume 62, Numbers 1 - 4
- 2013 Volume 61, Numbers 1 - 4
- 2012 Volume 60, Numbers 1 - 4
- 2011 Volume 59, Numbers 1 - 4
- 2010 Volume 58, Numbers 1 - 4
- 2009 Volume 57, Numbers 1 - 4
- 2008 Volume 56, Numbers 1 - 4
- 2007 Volume 55, Numbers 1 - 4
- 2006 Volume 54, Numbers 1 - 4
- 2005 Volume 53, Numbers 1 - 4
- 2004 Volume 52, Numbers 1 - 4
- 2003 Volume 51, Numbers 1 - 4
- 2002 Volume 50, Numbers 1 - 4
- 2001 Volume 49, Numbers 1 - 4
- 2000 Volume 48, Numbers 1 - 4
- 1999 Volume 47, Numbers 1 - 4
- 1998 Volume 46, Numbers 1 - 4
- 1997 Volume 45, Numbers 1 - 4
- 1996 Volume 44, Numbers 1 - 4
- 1995 Volume 43, Numbers 1 - 4
- 1994 Volume 42, Numbers 1 - 4
- 1993 Volume 41, Numbers 1 - 4
- 1992 Volume 40, Numbers 1 - 4
- 1991 Volume 39, Numbers 1 - 4
- 1990 Volume 38, Numbers 1 - 4
- 1990 Volume 38A, Number 1
- 1989 Volume 37, Numbers 1 - 4
- 1988 Volume 36, Numbers 1 - 4
- 1987 Volume 35, Numbers 1 - 4
- 1986 Volume 34, Numbers 1 - 4
- 1985 Volume 33, Numbers 1 - 4
- 1984 Volume 32, Numbers 1 - 4
- 1983 Volume 31, Numbers 1 - 4
- 1982 Volume 30, Numbers 1 - 4
- 1981 Volume 29, Numbers 1 - 4
- 1980 Volume 28, Numbers 1 - 4
- 1979 Volume 27, Numbers 1 - 4
- 1978 Volume 26, Numbers 1 - 4
- 1977 Volume 25, Numbers 1 - 6
- 1976 Volume 24, Numbers 1 - 4
- 1975 Volume 23, Numbers 1 - 4
- 1974 Volume 22, Numbers 1 - 4
- 1973 Volume 21, Numbers 1 - 4
- 1972 Volume 20, Numbers 1 - 4
- 1971 Volume 19, Numbers 1 - 4
- 1970 Volume 18, Numbers 1 - 4
- 1969 Volume 17, Numbers 1 - 4
- 1968 Volume 16, Numbers 1 - 4
- 1967 Volume 15, Numbers 1 - 4
- 1966 Volume 14, Numbers 1 - 4
- 1965 Volume 13, Numbers 1 - 4
