Access Year:  From 2000 To Present | Publisher:  ACM 

Access Year:  From 1983 To Present | Publisher:  ACM 

Access Year:  From 1994 To Present | Publisher:  ACM 

Access Year:  From 1976 To Present | Publisher:  ACM 

Access Year:  From 1996 To Present | Publisher:  ACM 

Access Year:  From 2002 To Present | Publisher:  ACM 

Access Year:  From 1982 To Present | Publisher:  ACM 

Access Year:  From 1998 To Present | Publisher:  ACM 

Access Year:  From 1983 To Present | Publisher:  ACM 

Access Year:  From 2001 To Present | Publisher:  ACM 

Access Year:  From 2007 To Present | Publisher:  ACM 

Access Year:  From 1975 To Present | Publisher:  ACM 

Access Year:  From 1991 To Present | Publisher:  ACM 

Access Year:  From 2005 To Present | Publisher:  ACM 

Access Year:  From 1979 To Present | Publisher:  ACM 

Access Year:  From 2005 To Present | Publisher:  ACM 

Access Year:  From 1992 To Present | Publisher:  ACM 

Access Year:  From 2004 To Present | Publisher:  ACM 

Access Year:  From 2005 To Present | Publisher:  ACM 

Access Year:  From 2007 To Present | Publisher:  ACM