Frey M.N. ea, 1973
Frey M.N. , Koetzle T.F. , Lehmann M.S. , Hamilton W.C.
Precision neutron diffraction structure determination of
protein and nucleic acid components. XII. A study of
hydrogen bonding in the purine-pyrimidine base pair
9-methyladenine - 1-methylthymine, J. Chem. Phys. , 59,
915-924 ( 1973 ).
.gif)