TY - RPRT TI - Hypercycles, parasites and packages. AU - C Bresch AU - U Niesert AU - D Harnasch PY - 1980 DO - 10.1016/0022-5193(80)90314-8 UR - https://pubmed.ncbi.nlm.nih.gov/6893729/ ID - 6893729 ER -