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Wingfield, R. A. and Murphy, Kevin J. and Gaywood, Martin J. (2006) Assessing and predicting the success of Najas flexilis (Willd.) Rostk. & Schmidt, a rare European aquatic macrophyte, in relation to lake environmental conditions. Hydrobiologia, 570 (1). pp. 79-86. ISSN 0018-8158
Wingfield, R. A. and Murphy, Kevin J. and Hollingsworth, P. and Gaywood, Martin J. (2004) The Ecology of Najas flexilis. Scottish Natural Heritage Commissioned Report No. 017. Scottish Natural Heritage .