• A comparative SEM study of ossicles in the Pleuronectiformes (Teleostei) of the Baltic SeaMärss, Tiiu; Wilson, Mark; Lees, Janek; Saat, Toomas; Špilev, HeliProceedings of the Estonian Academy of Sciences2015 / p. 495-517 : ill https://doi.org/10.3176/proc.2015.4.05 https://www.scopus.com/sourceid/11500153303 https://www.scopus.com/record/display.uri?eid=2-s2.0-84955131930&origin=inward&txGid=12d65d546c5679b0567b3cc26d873de8 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=P%20EST%20ACAD%20SCI&year=2015 https://www.webofscience.com/wos/woscc/full-record/WOS:000366503800005
• The morphology and sculpture of ossicles in the Cottidae (Teleostei) of the Baltic SeaMärss, Tiiu; Lees, Janek; Wilson, Mark V.H.; Saat, Toomas; Špilev, HeliEstonian journal of earth sciences2010 / 3, p. 216-237 : ill https://artiklid.elnet.ee/record=b2163755*est
• The morphology and sculpture of ossicles in the Cyclopteridae and Liparidae (Teleostei) of the Baltic SeaMärss, Tiiu; Lees, Janek; Wilson, Mark; Saat, Toomas; Špilev, HeliEstonian journal of earth sciences2010 / p. 263-276 : ill https://artiklid.elnet.ee/record=b2183599*est