Jeremiah BirrellCheng-Tao YangPISIN CHENJohann Rafelski2018-09-102018-09-102014http://scholars.lib.ntu.edu.tw/handle/123456789/386081Relic neutrinos: Physically consistent treatment of effective number of neutrinos and neutrino massjournal article10.1103/PhysRevD.89.023008WOS:000331869400001