Walk ST, Xu G, Stull JW, Rich SM.  2009.  Correlation between tick density and pathogen endemicity, New Hampshire.. Emerg Infect Dis. 15(4):585-7.

Rich SM, Rosenthal BM, Telford SR, Spielman A, Hartl DL, Ayala FJ.  1997.  Heterogeneity of the internal transcribed spacer (ITS-2) region within individual deer ticks.. Insect Mol Biol. 6(2):123-9.

Caporale DA, Rich SM, Spielman A, Telford SR, Kocher TD.  1995.  Discriminating between Ixodes ticks by means of mitochondrial DNA sequences.. Mol Phylogenet Evol. 4(4):361-5.