Gilbert Held Using the Internet - proceed with caution. 1-2 1997 7 Int. J. Netw. Manag. 1 https://doi.org/10.1002/(SICI)1099-1190(199701/02)7:1<1::AID-NEM228>3.0.CO;2-Y db/journals/ijnm/ijnm7.html#Held97