@inproceedings{Mori:2017P5, author = "Mori, Taisaku and Nitta, Daisuke and Nojiri, Shinichi", title = "{A simple solution for one of the cosmological constant problem by a topological field theory}", doi = "10.22323/1.294.0040", booktitle = "Proceedings of The 3rd International Symposium on “Quest for the Origin of Particles and the Universe" {\textemdash} PoS(KMI2017)", year = 2017, volume = "294", pages = "040" }