Greenfield, L. Water soluble substances in terrestrial Antarctic plants and microbes. New Zealand natural sciences 16: 21-30, 1989.
Greenfield, L.G. Fixed ammonium in Antarctic rocks and soils and a possible cause of underestimation. Soil biology and biochemistry 23(4): 397-399, 1991.
Greenfield, L.G. Forms of nitrogen in Beacon Sandstone rocks containing endolithic microbial communities in southern Victoria Land, Antarctica. Polarforschung 58(2/3): 211-218, 1988.
Broady, P.A., Greenfield, L.G. And Kibblewhite, A. Ecological and taxonomic studies of Antarctic plants and microbes. 1986-87 New Zealand Antarctic Research Programme Report No. 1. Immediate Scientific Report. Department of Plant and Microbial Sciences, University of Canterbury, New Zealand.