TY - RPRT TI - Ultrastructural changes during spherule formation in Physarum polycephalum. AU - E M Goodman AU - H P Rusch PY - 1970 DO - 10.1016/s0022-5320(70)90071-7 UR - https://pubmed.ncbi.nlm.nih.gov/5460843/ ID - 5460843 ER -