Marcus A, Feeley J
FIELD CROPS AND ANIMAL PRODUCTS BRANCH, MARKET QUALITY RESEARCH DIVISION, AGRICULTURAL MARKETING SERVICE, UNITED STATES DEPARTMENT OF AGRICULTURE, BELTSVILLE, MARYLAND.
Proc Natl Acad Sci U S A. 1964 Jun;51(6):1075-9. doi: 10.1073/pnas.51.6.1075.