Purcell, C.R., Balasubramanyam, R., Burton, M.G., Walsh, A.J., Minier, V., Hunt-Cunningham, M.R., Kedziora-Chudczer, L. L., Longmore, S.N., Hill, T., Bains, I., Barnes, P.J., Busfield, A. L., Calisse, P., Crighton, N.H. M., Curran, S.J., Davis, T.M., Dempsey, J.T., Derragopian, G., Fulton, B., Hidas, M.G., Hoare, M.G., Lee, J.-K., Ladd, E. F., Lumsden, S.L., Moore, T.J. T., Murphy, M.T., Oudmaijer, R. D., Pracy, M.B., Rathborne, J., Robertson, S., Schultz, A.S. B., Shobbrook, J., Sparks, P.A., Storey, J., and Travouillion, T. (2006) A CH3CN and HCO+ survey towards southern methanol masers associated with star formation. Monthly Notices of the Royal Astronomical Society, 367 (2). pp. 553-576.