NASA:10.3155/1047-3289.57.11.1360
NASA:10.3155/1047-3289.59.6.645
NASA:10.3155/1047-3289.59.7.865
NASA:10.3155/1047-3289.59.8.980
NASA:10.3155/1047-3289.61.2.211
NASA:10.3155/1047-3289.S7.11.1351