TY  - JOUR 
T1  - Open-source system for reservoir water level monitoring using ultrasonic sensing
JO  - Engenharia Agrícola
A1  - Pinto, Jair S. S.
A1  - Duarte, Sergio N.
SN  - 0100-6916
UL  - 10.1590/1809-4430-Eng.Agric.v46e20250056/2026
VL  - 46 
Y1  - 2026
PB  - Brasil 
ER  -