Xin Yang 0002 Songyan Zhu Dake Zhou Yifan Zhang 0034 An improved target tracking algorithm based on spatio-temporal context under occlusions. 329-344 2020 31 Multidimens. Syst. Signal Process. 1 https://doi.org/10.1007/s11045-019-00664-5 db/journals/mssp/mssp31.html#YangZZZ20