IT security in Dutch practice. - Marcel E. M. Spruit; Maarten Looijen (Comput. Secur., 1996)

Cost-effective Management of International Networks. - Floris G. H. van den Broek; Maarten Looijen (Int. J. Netw. Manag., 1997)

Management of international networks. - Floris G. H. van den Broek; Maarten Looijen (Int. J. Netw. Manag., 1997)

Network management abroad. - J. C. W. Hendriks; Marcel E. M. Spruit; Maarten Looijen (Int. J. Netw. Manag., 2002)