You may also wish to search for items by Heckman, R. and Heckman.
Only one matching reference was found.
Spencer, J.N.; Heckman, R.A.; Harner, R.S.; Shoop, S.L.; Robertson, K.S., Effects of the intramolecular hydrogen bond on intermolecular hydrogen bonding in hydroxybenzene + ether systems, J. Phys. Chem., 1973, 77, 3103-6. [all data]