From mandatory icebreaker guiding to a permission regime: changes to the new Russian legislation of the Northern Sea Route

ZHANG Xia, ZOU Leilei, TU Jingfang, QIAN Zongqi, WANG Zeming & YANG Huigen

ADVANCES IN POLAR SCIENCE . 2014, (3-English): 138 -146 . DOI: 10.13679/j.advps.2014.3.00138