by Clark B.R, Halpern R.M, Smith R.A
Published in Analytical Biochemistry (1975)

by Halpern, Richard M., Chaney, S.Q., Halpern, B.C., Smith, Roberts A.
Published in Biochemical and biophysical research communications (19.02.1971)

by Chaney, Suzanne Q., Halpern, B.C., Halpern, R.M., Smith, Roberts A.
Published in Biochemical and biophysical research communications (10.09.1970)

by Sheu, C, Halpern, R M, Smith, R A
Published in Biochimica et biophysica acta (21.05.1970)