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1. Letter from Leon A. Heppel to Maxine Singer

Creator:
Heppel, Leon A.
National Institutes of Health (U.S.)
Date:
13 December 1955
Genre:
Letters (correspondence)

2. Letter from Leon A. Heppel to Maxine Singer

Creator:
Heppel, Leon A.
Date:
[2 June 1968?]
Genre:
Letters (correspondence)

3. The Polymerization of Guanosine Diphosphate by Polynucleotide Phosphorylase

Creator:
Singer, Maxine
Heppel, Leon A.
Hilmoe, Russell
Date:
March 1960
Publisher:
American Society for Biochemistry and Molecular Biology
Genre:
Articles

4. The Mechanism of Action of Polynucleotide Phosphorylase

Creator:
Singer, Maxine
Heppel, Leon A.
Hilmoe, Russell
Date:
[1959]
Publisher:
New York Academy of Sciences
Genre:
Articles

5. Letter from Leon A. Heppel to Maxine Singer

Creator:
Heppel, Leon A.
National Institutes of Health (U.S.)
Date:
[28 December 1957?]
Genre:
Letters (correspondence)

6. Letter from Leon A. Heppel to Maxine Singer

Creator:
Heppel, Leon A.
National Institutes of Health (U.S.)
Date:
[27 July 1958?]
Genre:
Letters (correspondence)

7. Letter from Leon A. Heppel to Maxine Singer

Creator:
Cornell University
Heppel, Leon A.
Date:
5 December 1985
Genre:
Letters (correspondence)

8. Letter from Leon A. Heppel to Maxine Singer

Creator:
Heppel, Leon A.
Date:
[13 December 1974]
Genre:
Letters (correspondence)

9. Letter from Leon A. Heppel to Maxine Singer

Creator:
Heppel, Leon A.
National Institutes of Health (U.S.)
Date:
27 October 1955
Genre:
Letters (correspondence)

10. Letter from Leon A. Heppel to Maxine Singer

Creator:
Cornell University
Heppel, Leon A.
Date:
[5 June 1971]
Genre:
Letters (correspondence)