Implementing a generalized tool for network monitoring. - Marcus J. Ranum; Kent Landfield; Michael T. Stolarchuk; Mark Sienkiewicz; Andrew Lambeth; Eric Wall (Inf. Secur. Tech. Rep., 1998)

Rebuilding the Hubble Exposure Time Calculator. - Perry Greenfield; Ivo Busko; Rosa Diaz; Vicki Laidler; Todd Miller; Mark Sienkiewicz; Megan Sosey (SciPy, 2010)