US patent 4966845[깨진 링크(과거 내용 찾기)], Stack; Robert J., "Microbial production of L-altrose", issued 1990-10-30, assigned to Government of the United States of America, Secretary of Agriculture
US patent 4966845[깨진 링크(과거 내용 찾기)], Stack; Robert J., "Microbial production of L-altrose", issued 1990-10-30, assigned to Government of the United States of America, Secretary of Agriculture