Edward A. Billard, Alice E. Riedmiller. Q-Sim: a GUI for a queueing simulator using Tcl/Tk. ACM SIGSOFT Software Engineering Notes, 19(4):82-85, 1994. [doi]
@article{BillardR94,
title = {Q-Sim: a GUI for a queueing simulator using Tcl/Tk},
author = {Edward A. Billard and Alice E. Riedmiller},
year = {1994},
doi = {10.1145/190679.190689},
url = {https://doi.org/10.1145/190679.190689},
researchr = {https://researchr.org/publication/BillardR94},
cites = {0},
citedby = {0},
journal = {ACM SIGSOFT Software Engineering Notes},
volume = {19},
number = {4},
pages = {82-85},
}