== Kilder/referencer ==
{{reflist}}
<div class="references-small">
:* {{cite journal|author=Lobo,  Francisco S. N.; & Visser, Matt|title=Fundamental limitations on 'warp drive' spacetimes|journal=Class. Quant. Grav.|year=2004|volume=21|pages=5871–5892|doi=10.1088/0264-9381/21/24/011}} See also the {{cite web|title=eprint|work=arXiv|url=http://www.arxiv.org/abs/gr-qc/0406083|access-date=23. juni 2005|df=mdy}}
:* {{cite journal|author=Hiscock, William A.|title=Quantum effects in the Alcubierre warp drive spacetime|journal=Class. Quant. Grav.|year=1997|volume=14|pages=L183–L188|doi=10.1088/0264-9381/14/11/002}} See also the {{cite web|title=eprint|work=arXiv|url=http://www.arxiv.org/abs/gr-qc/9707024|access-date=23. juni 2005|df=mdy}}
:* {{cite book|author=Berry, Adrian|title=The Giant Leap: Mankind Heads for the Stars|url=https://archive.org/details/giantleapmankind0000berr_e5s9|publisher=Headline|year=1999|isbn=0-7472-7565-3}} Apparently a popular book by a science writer, on space travel in general.
:* T. S. Taylor, T. C. Powell, "Current Status of Metric Engineering with Implications for the Warp Drive," AIAA-2003-4991 39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, Huntsville, Alabama, July 20-23, 2003
:* H. E. Puthoff, "SETI, the velocity-of-light limitation, and the Alcubierre warp drive: an integrating overview," Physics Essays 9, 156-158 (1996).
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