@article{SarichSchuetteVandenEijnden2010, author = {Marco Sarich and Christof Sch{\"u}tte and E. Vanden-Eijnden}, title = {Optimal Fuzzy Aggregation of Networks}, journal = {Multiscale Modeling and Simulation}, volume = {8}, number = {4}, pages = {1535 -- 1561}, doi = {10.1137/090758519}, year = {2010}, }