LI HONG-CHENG, WANG RUI-LAN, WANG PING-SHU, GUAN WEI-YEN. A NEW METHOD FOR DETERMINING THE ENERGY GAP OF A SUPERCONDUCTOR USING THE MAXIMUM IN DIFFERENTIAL CONDUCTANCE OF ELECTRON TUNNELING SPECTRUMJ. Acta Physica Sinica, 1986, 35(2): 266-268. DOI: 10.7498/aps.35.266