@article{Choi:2018Mu, author = "Choi, Su Yong", title = "{Rare top quark production in CMS: ttW, ttZ, ttgamma, tZ, tgamma, and tttt production}", doi = "10.22323/1.316.0119", journal = "PoS", year = 2018, volume = "DIS2018", pages = "119" }