金融危机前后BDI指数与CBFI指数的多重分形研究
张佳惠,何红弟
Multifractal Property Between Baltic Dry Index and China Coastal Bulk Freight Index Before and After Financial Crisis
ZHANG Jiahui, HE Hongdi
计算机工程与应用 . 2019, (5): 237 -243 .  DOI: 10.3778/j.issn.1002-8331.1711-0060