[1]
E. Eloranta, V. Ojutkangas, M. Nieminen, J. Leppäluoto, O. Vakkuri, and J. Timisjärvi, “Melatonin secretion in reindeer (Rangifer tarandus tarandus L.)”, Ran, vol. 10, no. 3, p. 237, Sep. 1990.