@article {Wunnemann-2005-SBP, author= "K Wünnemann and GS Collins and HJ Melosh", journal= "Icarus", title= "A strain-based porosity model for use in hydrocode simulations of impacts and implications for transient crater growth in porous targets ", year= "2005", theme= "", project= "", added-by= "Daniel Acevedo", date-added= "Mon October 8 19:55:22 2007" } @article {Wunnemann-2005-SBP-url, author= "K Wünnemann and GS Collins and HJ Melosh", journal= "Icarus", note= " \url{http://www.cs.brown.edu/research/vis/results/bibtex/Wunnemann-2005-SBP.bib}{(bibtex: Wunnemann-2005-SBP)}", title= "A strain-based porosity model for use in hydrocode simulations of impacts and implications for transient crater growth in porous targets ", year= "2005", theme= "", project= "", added-by= "Daniel Acevedo", date-added= "Mon October 8 19:55:22 2007" }