Bither, T.A.; Prewitt, C.T.; Gillson, J.L.; Bierstedt, P.E.; Flippen, R.B.; Young, H.S. (1966). "New transition metal dichalcogenides formed at high pressure". Solid State Communications4 (10): 533–535. doi:10.1016/0038-1098(66)90419-4. Bibcode: 1966SSCom...4..533B.
Bither, T.A.; Prewitt, C.T.; Gillson, J.L.; Bierstedt, P.E.; Flippen, R.B.; Young, H.S. (1966). "New transition metal dichalcogenides formed at high pressure". Solid State Communications4 (10): 533–535. doi:10.1016/0038-1098(66)90419-4. Bibcode: 1966SSCom...4..533B.