@article[Artsutanov60, Author="Artsutanov, Y.", Key="Artsutanov",
Title="V Kosmos na Elektrovoze (Into Space by Funicular Railway)",
Journal="Komsomolskaya Pravda (Young Communist Pravda)",
Month="July 31", Year=1960,
Note="contents described in Lvov, @i(Science) 158:946, November 17, 1967"]

@article[Isaacs66, Key="Isaacs",
Author="Isaacs, J. D., A. C. Vine, H. Bradner and G. E. Bachus",
Title="Satellite Elongation into a True 'Sky-Hook'",
Journal="Science", Volume=151, Pages="682-683", Month="February 11",
Year=1966, Note="see also letter in @i(Science) 152:800, May 6, 1966"]

@article[Artsutanov69, Key="Artsutanov", Author="Artsutanov, Y.",
Title="V Kosmos Bez Raket (Into Space Without Rockets)",
Journal="Znanije-Sile (Knowledge is Power)",
Volume=1969, Number=7, Pages="25", Year=1969, Month=July]

@article[Collar69, Key=Collar, Author="Collar, A. R. and J. W. Flower",
Title="A (Relatively) Low Altitude 24-hour Satellite",
Journal="Journal of the British Interplanetary Society",
Volume=22, Year=1969, Pages="442-457"]

@Techreport[Polyakov75, Key="Polyakov",
Author="Polyakov, G.", Title="A Space 'Necklace' About the Earth",
Institution="NASA", Number="technical memorandum TM-75174",
Note="translation of `Kosicheskoye 'Ozhere'ye' Zemli` in Teknika Molodezhi,
      No. 4, 197, pp. 41-43"]

@article[Pearson75, Key="Pearson", Author="Pearson, J.",Title=
"The Orbital Tower: A Spacecraft Launcher Using the Earth's Rotational Energy",
Journal="Acta Astronautica", Volume=2, Pages="785-799",
Month="September/October", Year=1975]

@Inproceedings[Pearson76, Key="Pearson", Author="Pearson, J.",
Title="Using The Orbital Tower to Launch Earth Escape Payloads Daily",
Organization="AIAA", Booktitle="27'th IAF Congress, Anaheim, Ca.",
Month=October, Year=1976, Note="AIAA paper IAF 76-123"]

@Inproceedings[Pearson77, Key="Pearson", Author="Pearson, J.",Title=
"Anchored Lunar Satellites for Cis-Lunar Transportation and Communication",
Organization="AAS",
Booktitle="European Conference on Space Settlements and Space Industries, London, England", Month="September 20", Year=1977,
Note="in Journal of the Astronautical Sciences"]

@article[Moravec77, Key="Moravec", Author="Moravec, H. P.", Title="A
Non-Synchronous Orbital Skyhook", Journal="Journal of the Astronautical Sciences", 
Volume=25, Number=4, Month="October-December", Year=1977, Pages="307-322", 
Note="presented at 23rd AIAA Meeting, The Industrialization of Space, San Francisco,
Ca., October 18-20, 1977"]

@article[Arnold79A, Key="Arnold", Author="Arnold, R. D. and D. Kingsbury",
Title="The Spaceport, Part 1", Pages="48-67",
Journal="Analog", Volume=99, Number=11, Month=November, Year=1979]

@article[Arnold79B, Key="Arnold", Author="Arnold, R. D. and D. Kingsbury",
Title="The Spaceport, Part 2", Pages="61-77",
Journal="Analog", Volume=99, Number=12, Month=December, Year=1979]

@inproceedings[Pearson78, Key="Pearson", Author="Pearson, J.",
Author="Lunar Anchored Satellite Test", Organization="AIAA/AAS",
Booktitle="AIAA/AAS Astrodynamics Conference, Palo Alto, Ca.",
Month="August 7-9", Year=1978, Note="AIAA paper 78-1427"]

@article[Moravec78, Key="Moravec", Author="Moravec, H. P.",
        Title="Skyhook!", Journal="L5 News", Month=August, Year=1978]

@book[Clarke78, Key="Clarke", Author="Clarke, A. C.",
	Title="The Fountains of Paradise",
    	Publisher="Harcourt, Brace and Jovanovich", Year=1978]

@book[Sheffield79, Key="Sheffield", Author="Sheffield, C.",
	Title="The Web Between the Worlds", Publisher="Ace SF", Year=1979]

@article[Sheffield79B, Key="Sheffield", Author="Sheffield, C.",
	Title="Skystalk", Journal="Destinies", Volume=1, Number=4,
	Month="August-September", Year=1979, Pages="7-39"]

@inbook[Moravec79, Key="Moravec", Author="Moravec, H. P.",
	Title="Cable Cars in the Sky",
	Series="The Endless Frontier", Volume=1,
	Note="Jerry Pournelle, ed.",
	Publisher="Grosset & Dunlap, Ace books",
	Month="November", Year=1979, Pages="301-322"]

@article[Forward80, Key="Forward", Author="Forward, R. L. and H. P. Moravec",
	Title="High Wire Act", Journal="Omni", 
	Month=July, Year=1981, Pages="44-47"
	Note="  Also in @p(The OMNI Book of Space), Zebra Books,
Kensington Publishing Corp., New York, N. Y., January, 1984, pp. 73-82."]

@article[Sheffield81, Key="Sheffield", Author="Sheffield, C.",
	Title="Summertide", Journal="Destinies",
	Volume=3, Number=2, Month="August", Year=1981, Pages="16-84"]

@article[Carley83, Key="Carley",
	Author="Carley,  F. B. and H. P. Moravec",
	Title="The Rocket/Skyhook Combination", Journal="L5 News",
	Volume=8, Number=3, Month="March", Year=1983, Pages="4-6"]