@BOOK{NAP12284, title = "Microgravity Research Opportunities for the 1990s", doi = "10.17226/12284", url = "https://nap.nationalacademies.org/catalog/12284/microgravity-research-opportunities-for-the-1990s", year = 1995, publisher = "The National Academies Press", address = "Washington, DC" }