Gil was my graduate research advisor for my M.Sc. and Ph.D. degrees at the University of Maryland-College Park (1961-67). I published six papers with him.
Our work was supported by the US Atomic Energy Commission.

Oxygen-18 Exchange Reactions Between Gaseous Oxygen and Certain Oxygen Containing Inorganic Salts
G. Gordon and B. Shakhashiri
Journal of Inorganic & Nuclear Chemistry, 1965

Determination of Oxygen-18 in Inorganic Compounds
G. Gordon and B. Shakhashiri
Talanta, 1966

The Homomolecular Exchange of Oxygen Isotopes at High Temperatures
G. Gordon and B. Shakhashiri
Journal of Inorganic & Nuclear Chemistry, 1966

Comments on Data Handling in Oxygen-18 Tracer Studies
G. Gordon and B. Shakhashiri
Journal of Inorganic & Nuclear Chemistry, 1968

The Oxidation of Tris-(1,10-phenanthroline)iron(II) Ion by Aqueous Chlorine
G. Gordon and B. Shakhashiri
Inorganic Chemistry, 1968

The Oxidation of Tris-(1,10-phenanthroline)iron(II) Ion by Chlorate and Chlorite Ions and Chlorine Dioxide
G. Gordon and B. Shakhashiri
Journal of the American Chemical Society, 1969