Daniel J. Brass (EDT)/ Stephen P. Borgatti (EDT)
(2)
Stephen P Borgatti/ Martin G. Everett/ Jeffrey C. Johnson
(2)
Stephen P. Borgatti,Martin G. Everett,Jeffrey C. Johnson,Filip Agneessens
(2)
Peter Groenewegen (EDT)/ Julie E. Ferguson (EDT)/ Christine Moser (EDT)/ John Mohr (EDT)/ Stephen P. Borgatti (EDT)
(1)