You may also wish to search for items by Schaeffer, S. and Schaeffer.
Only one matching reference was found.
DiGuilio, R.M.; Lee, R.J.; Schaeffer, S.T.; Brasher, L.L.; Teja, A.S., Densities and viscosities of the ethanolamines, J. Chem. Eng. Data, 1992, 37, 239-42. [all data]