Expressed 2–5A synthetase genes and pseudogenes in the marine sponge Geodia barrettiVallmann, Kerli; Aas, Nele; Reintamm, Tõnu; Lopp, Annika; Kuusksalu, Anne; Kelve, MerikeGene2011 / p. 42-49 : ill https://www.sciencedirect.com/science/article/pii/S0378111911000163