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Blunt LA, Bills PJ, Jiang XQ, Chakrabarty G.Blunt LA, et al. Among authors: bills pj.Proc Inst Mech Eng H. 2008 Apr;222(3):309-18. doi: 10.1243/09544119JEIM289.Proc Inst Mech Eng H. 2008.PMID: 18491700Free article.
Gerstner BE, Blair ME, Bills P, Cruz-Rodriguez CA, Zarnetske PL.Gerstner BE, et al. Among authors: bills p.Philos Trans A Math Phys Eng Sci. 2024 Apr;382(2269):20230057. doi: 10.1098/rsta.2023.0057. Epub 2024 Feb 12.Philos Trans A Math Phys Eng Sci. 2024.PMID: 38342213Free PMC article.