@BOOK{NAP9524, title = "Doctoral Scientists and Engineers in the United States: 1995 Profile", doi = "10.17226/9524", url = "https://nap.nationalacademies.org/catalog/9524/doctoral-scientists-and-engineers-in-the-united-states-1995-profile", year = 1998, publisher = "The National Academies Press", address = "Washington, DC" }