Michael A Nichols, Delia Waldmüller and Paul G. Williard. "6Li and 15N Nuclear Magnetic Resonance Studies of Mixed Alkali Metal Cation Hexamethyldisilazide Bases" Journal of the American Chemical Society Vol. 116 Iss. 3 (1994)
Available at: http://works.bepress.com/michael_nichols/6/