Bosc, M., Ove Hoeg and S.Manum <br/><br/>
On double Walls in fossil Megaspores 

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 - Oslo-NOR    1955 
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 - Magasin for Botanikk   v.4 .
<br/><br/><label>ISBN: </label>
<br/><br/><label>Subjects--Topical Terms: </label>--Paleobotanica--Fosiles--Megaspores--<br/>Paleobotanica