@inproceedings{RudolphLenkDoerneretal.2011, author = {Matthias Rudolph and Friedrich Lenk and Ralf D{\"o}rner and Peter Heymann}, title = {Towards a Unified Method to Implement Transit-Time Effects in Pi-Topology HBT CompactModels}, booktitle = {IEEE MTT-S International Microwave Symposium digest, June 2 - 7, 2002, Washington State Convention \& Trade Center, Seattle, Washington, Vol. 2}, pages = {997 -- 1000}, year = {2011}, }