Access Year:  From 1988 To Present | Publisher:  EMERALD 

Access Year:  From 1995 To Present | Publisher:  ELSEVIER 

Access Year:  From 1976 To Present | Publisher:  ELSEVIER 

Access Year:  From 1968 To Present | Publisher:  AMERICAN CHEMICAL SOCIETY 

Access Year:  From 1993 To 1993 | Publisher:  IEL 

Access Year:  From 1969 To Present | Publisher:   

Access Year:  From 2000 To 2002 | Publisher:  ACM 

Access Year:  From 2005 To Present | Publisher:  ACM 

Access Year:  From 1992 To 1993 | Publisher:  ACM 

Access Year:  From 2005 To Present | Publisher:  ACM 

Access Year:  From 2004 To Present | Publisher:  ACM 

Access Year:  From 2004 To Present | Publisher:  ACM 

Access Year:  From 2002 To Present | Publisher:  ACM 

Access Year:  From 2006 To Present | Publisher:  ACM