@book{mcdonald_2001, title={Fundamentals of infrastructure engineering: Civil engineering systems}, ISBN={0824706129}, publisher={New York: Marcel Dekker}, author={McDonald, P. H.}, year={2001} }
 @book{mcdonald_1996, title={Continuum mechanics.  (PWS series in engineering)}, ISBN={0534939848}, publisher={Boston: PWS Pub. Co}, author={McDonald, P. H.}, year={1996} }