TY  - BOOK
AU  - Gislerod,H.R.
AU  - Kempton,R.J.
TI  - The oxygen content of flowing nutrient solutions used for cucumber and tomato culture
UR  - https://drive.google.com/file/d/1uBlPSNkUD64tGC9B6ZKamt3pbGezGynP/view?usp=drivesdk
ER  -