Risks and Prevention Measures in the Process of Natural Gas Hydrate Exploitation 
Pu　Zi-fang, Sun　Wei-bo, Zhang　Da-ming, Zhang　Bing-lu, Shi　Guang-bao
Ocean Engineering Equipment and Technology . 2019, (增刊): 474 .  DOI: 10.12087/oeet.2095-7297.2019.z1.89