KEH H-C, SHIH K-P, CHANG C-Y, CHEN H-C, CHOU C-M. GUARD: A GUIDE, ALARM, RECOVERY, AND DETECTION SYSTEM ON A WIRELESS SENSOR NETWORK FOR THE BLIND. JMM [Internet]. 2006 Sep. 20 [cited 2024 Jul. 24];2(4):359-70. Available from: https://journals.riverpublishers.com/index.php/JMM/article/view/5021