TY - RPRT TI - [2-nitro-3-hydroxy-4-pyrones. 22. Studies on 4-pyrones]. AU - F Eiden AU - J Plückhan PY - 1969 DO - 10.1002/ardp.19693020809 UR - https://pubmed.ncbi.nlm.nih.gov/5267028/ ID - 5267028 ER -