Ref.: Manning, C.E. and Bird, D.K. (1986) Hydrothermal clinopyroxenes of the Skaergaard intrusion. Contributions to Mineralogy and Petrology: 92: 437-447.
Rudashevsky, N.S., McDonald, A.M., Cabri, L.J., Nielsen, T.F.D., Stanley, C.J., Kretzer, Yu.L., and Rudashevsky, V.N. (2004) Skaergaardite, PdCu, a new platinum-group intermetallic mineral from the Skaergaard intrusion, Greenland. Mineralogical Magazine: 68(4): 615–632.
McDonald A.M., Cabri L.J., Rudashevsky N.S., Stanley C.J., Rudashevsky V.N. , and K.C.Ross: Nielsenite, a new platinum-group intermatallic mineral spoecies from the Skaergaard intrusion, Greenland. Canadian Mineralogist 46,709-716(2008)