found: nuc86-95524: Counselman, C.C. Use of a transportable VLBI electronics system ... 1981(hdg. on DI-GS rept.: Shapiro, Irwin I.; usage: Irwin I. Shapiro)
found: Exploring time, 1999:CIP data sheet (Shapiro, Irwin I.)
found: Shapiro, Irwin. The unity of science, 2023:title page (Irwin Shapiro) dust jacket (Irwin Shapiro is Timken University Professor at Harvard University, where he directed the Harvard-Smithsonian Center for Astrophysics from 1983 through mid-2004. Shapiro has received numerous awards, including the 2013 Einstein Prize from the American Physical Society.)
found: Harvard-Smithsonian Center for Astrophysics website, viewed October 4, 2023(Professor Irwin Ira Shapiro; The Center for Astrophysics, Harvard & Smithsonian; Physicist; Astronomer; Educator; Observatory administrator)