1. Synthesis, Characterization, and Catalytic Properties of Nu-1, FU-1, and Related Zeolites
2. R.A. Morrison, U.S. Patent 3,856,872 (December 24, 1974).
3. O.W. Haag and D.H. Ohlson, U.S. Patent 3,856,871 (December 24, 1974).
4. P.E. Keown, C.C. Meyers and R.G. Wetherold, U.S. Patent 3,751,504 (August 7, 1973).