Havbund: Forskelle mellem versioner

<ref>{{cite journal|last=Flood|first=Roger D.|coauthors=Piper, D.J.W., Klaus, A., and Peterson, L.C. (Eds.)|year=1997|title=PREFACE: DEPTH BELOW SEAFLOOR CONVENTIONS|journal=Proceedings of the Ocean Drilling Program, Scientific Results|quote=we follow Ocean Drilling Program (ODP) meters below seafloor (mbsf) convention|volume=155|page=3}}</ref><ref>{{cite book|url=http://ebooks.cambridge.org/chapter.jsf?bid=CBO9780511541490&cid=CBO9780511541490A018|title=Sulphate-reducing Bacteria Environmental and Engineered Systems Edited by Larry L. Barton University of New Mexico|last=Parkes|first=R. John|coauthors=Henrik Sass|year=2007|work=Sulphate-reducing Bacteria Environmental and Engineered Systems|publisher=Cambridge University Press|pages=329–358|accessdate=11. Junejuni 2010|doi=10.1017/CBO9780511541490.012|quote=metres below the seafloor (mbsf)}}</ref>