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Full-text available from the year 1996 to current. Citations only from 1975 to 1995. GeoRef records only prior to that.
- 2022 Volume 57, Numbers 1 - 3-4
- 2021 Volume 56, Numbers 1 - 4
- 2020 Volume 55, Numbers 1 - 4
- 2019 Volume 54, Numbers 1 - 4
- 2018 Volume 53, Numbers 1 - 4
- 2017 Volume 52, Numbers 1 - 4
- 2016 Volume 51, Numbers 1 - 5
- 2015 Volume 50, Numbers 1 - 5
- 2014 Volume 49, Numbers 1 - 5
- 2013 Volume 48, Numbers 1 - 5
- 2012 Volume 47, Numbers 1 - 4
- 2011 Volume 46, Numbers 1 - 4
- 2010 Volume 45, Numbers 1 - 4
- 2009 Volume 44, Numbers 1 - 4
- 2008 Volume 43, Numbers 1 - 4
- 2007 Volume 42, Numbers 1 - 4
- 2006 Volume 41, Numbers 1 - 4
- 2005 Volume 40, Numbers 1 - 4
- 2004 Volume 39, Numbers 1 - 4
- 2003 Volume 38, Numbers 1 - 4
- 2002 Volume 37, Numbers 1 - 4
- 2001 Volume 36, Numbers 1 - 4
- 2000 Volume 35, Numbers 1 - 5
- 1999 Volume 34, Numbers 1 - 4
- 1998 Volume 33, Numbers 1 - 4
- 1997 Volume 32, Numbers 1 - 4
- 1996 Volume 31, Numbers 1 - 4
- 1995 Volume 30, Numbers 1 - 4
- 1994 Volume 29, Numbers 1 - 5
- 1993 Volume 28, Numbers 1 - 4
- 1992 Volume 27, Numbers 1 - 3
- 1991 Volume 26, Numbers 1 - 4
- 1990 Volume 25, Numbers 1 - 4
- 1989 Volume 24, Numbers 1 - 4
- 1988 Volume 23, Numbers 1 - 4
- 1987 Volume 22, Numbers 1 - 4
- 1986 Volume 21, Numbers 1 - 5
- 1985 Volume 20, Numbers 1 - 4
- 1984 Volume 19, Numbers 1 - 5
- 1983 Volume 18, Numbers 1 - 4
- 1982 Volume 17, Numbers 1 - 4
- 1981 Volume 16, Numbers 1 - 4
- 1980 Volume 15, Numbers 1 - 4
- 1979 Volume 14, Numbers 1 - 4
- 1978 Volume 13, Numbers 1 - 4
- 1977 Volume 12, Numbers 1 - 4
- 1976 Volume 11, Numbers 1 - 4
- 1975 Volume 10, Numbers 5 - 6
