TY  - RPRT
TI  - Digenetic trematodes: quinone tanning system in eggshells.
AU  - P M Nollen
PY  - 1971
DO  - 10.1016/0014-4894(71)90071-3
UR  - https://pubmed.ncbi.nlm.nih.gov/5003267/
ID  - 5003267
ER  -