Frerking et al. 1979

Frerking, M.A., R.A. Linke, and P. Thaddeus, 1979: Interstellar isothiocyanic acid. Astrophys. J., 234, L143-L145, doi:10.1086/183126.

Isothiocyanic acid (HNCS) has been identified in Sgr B2 from millimeter-wave spectral line observations. We have definitely detected three rotational lines, and have probably detected two others. The rotational temperature of HNCS in Sgr B2 is 14±5 K, its column density is 2.5±1.0×10¹³ /cm², and its abundance relative to HNCO is consistent with the cosmic S/O ratio, 1/42.

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Frerking, M.A., Linke, R.A., and Thaddeus, P.: Interstellar isothiocyanic acid, Astrophys. J., 234, L143-L145, doi:10.1086/183126, 1979.

Frerking, M.A., R.A. Linke, and P. Thaddeus (1979), Interstellar isothiocyanic acid, Astrophys. J., 234, L143-L145, doi:10.1086/183126.

Frerking, M.A., R.A. Linke, and P. Thaddeus, 1979: Interstellar isothiocyanic acid. Astrophys. J., 234, L143-L145, doi:10.1086/183126.

Frerking, M.A., Linke, R.A., & Thaddeus, P. 1979, Astrophys. J., 234, L143, doi:10.1086/183126.

Frerking MA, Linke RA, Thaddeus P. Interstellar isothiocyanic acid, Astrophys J 1979;234:L143-L145. doi:10.1086/183126.

M.A. Frerking, R.A. Linke, P. Thaddeus, Astrophys. J. 234, L143-L145, doi:10.1086/183126 (1979).