Timing in the Cospan-Span Model.

Alessandra Cherubini Nicoletta Sabadini Robert F. C. Walters Timing in the Cospan-Span Model. 81-97 2004 104 Electr. Notes Theor. Comput. Sci. http://dx.doi.org/10.1016/j.entcs.2004.08.020 db/journals/entcs/entcs104.html#CherubiniSW04