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.

Rich SM, Caporale DA, Telford SR, Kocher TD, Hartl DL, Spielman A.  1995.  Distribution of the Ixodes ricinus-like ticks of eastern North America.. Proc Natl Acad Sci U S A. 92(14):6284-8.