Bulletin of the American Astronomical Society.

v.5 1973, v.12 1980, v.13 1981, v.14 1982, v.15 1983, v.16 1984, v.17 1985, v.18 1986, v.19 1987, v.20 1988, v.21 1989, v.22 1990, v.23 1991, v.24 1992, v.25 1993, v.26 1994, v.27 1995, v.28 1996, v.29 nos.1 1997, v.29 nos.2-5 1997, v.30 nos.1-2 1998, v.30 nos.3-4 1998, v.31 1999, v.32 nos.1-2 2000, v.32 nos.3-4 2000, v.33 nos.1 2001, v.33 nos.2-4 2001, v.34 2002, v.35 nos.1-3 2003, v.35 nos.4-5 2003, v.36 nos.1-3 2004, v.36 nos.4-5 2004, v.37 2005, v.38 2006, v.39 2007, v.40 2008, v.41 2009, v.42 no.1 2010, v.42 no.2 2010, v.42 no.3 2010, v.42 no.4 2010, v.42 no.5 2010