TY - RPRT TI - Cyclic nucleotides and amphibian development. AU - A P Schutter AU - R Kram AU - E Hubert AU - J Brachet PY - 1975 DO - 10.1016/s0014-4827(75)80030-9 UR - https://pubmed.ncbi.nlm.nih.gov/172354/ ID - 172354 ER -