TY  - JOUR
A1  - Downing, E. R.
JO  - Science, N.Y
SP  - 228
EP  - 229
C1  - 12: 228-229
TI  - The spermatogenesis of Hydra
UR  - https://marinespecies.org/hydrozoa/aphia.php?p=sourcedetails&id=35827
VL  - 12
PY  - 1900
Y2  - 2026-04-15
ER  -