HANDLING AND SPREADING OF FERTILIZERS .3. MEASUREMENT OF PARTICLE VELOCITIES AND DIRECTIONS WITH ULTRASONIC TRANSDUCERS, THEORY, MEASUREMENT SYSTEM, AND EXPERIMENTAL ARRANGEMENTS
Jw. Hofstee, HANDLING AND SPREADING OF FERTILIZERS .3. MEASUREMENT OF PARTICLE VELOCITIES AND DIRECTIONS WITH ULTRASONIC TRANSDUCERS, THEORY, MEASUREMENT SYSTEM, AND EXPERIMENTAL ARRANGEMENTS, Journal of agricultural engineering research, 58(1), 1994, pp. 1-16