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Pärnapuu, Mare
;
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Keskkonnatehnika
2000
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5, lk. 42-43
https://artiklid.elnet.ee/record=b1005081*est
Trace fossils from the Dividalen Group of northern Finland with remarks on early Cambrian trace fossil provincialism
Sõstra, Ülo
;
Jensen, Sören
GFF
2006
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4, p. 321-325 : ill
https://www.tandfonline.com/doi/abs/10.1080/11035890601284321