Millard JT, Raucher S, Hopkins PB (1990). "Mechlorethamine Cross Links Deoxyguanosine Residues at 5'-GNC Sequences in Duplex DNA Fragments". Journal of the American Chemical Society. 112 (6): 2459–60. doi:10.1021/ja00162a079.
Rink SM, Solomon MS, Taylor MJ, Rajur SB, McLaughlin LW, Hopkins PB (1993). "Covalent structure of a nitrogen mustard-induced DNA interstrand cross-link: An N7-to-N7 linkage of deoxyguanosine residues at the duplex sequence 5'-d(GNC)". Journal of the American Chemical Society. 115 (7): 2551–7. doi:10.1021/ja00060a001.