Sterrenburg, F. A. S.; De Haan, M.; Herwig, W. E.; Hargraves, P. E. (2014). Typification and taxonomy of
Gyrosigma tenuissimum (W. Sm.) J.W. Griffith & Henfr., comparison with
Gyrosigma coelophilum N. Okamoto & Nagumo and description of two new taxa:
Gyrosigma tenuissimum var.
gundulae var. nov. and
Gyrosigma baculum sp. nov
. (Pleurosigmataceae, Bacillariophyta).
Phytotaxa. 172(2): 71-80.