海量图书期刊资源,随时随地畅享阅读乐趣
A detector of sonic and ultrasonic vocalizations with frequency readoutRex L. Clarke; Robert F. Smith; Don R. Justesen · 1989
Behavioral sensitivity of rats to extremely-low-frequency magnetic fieldsRobert F. Smith; Rex L. Clarke; Don R. Justesen · 1994
A programmable proximity-contact sensor to detect location or locomotion of animalsRex L. Clarke; Robert F. Smith; Don R. Justesen · 1992