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1.
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FINITE-THRUST ESCAPE FROM AND CAPTURE INTO CIRCULAR AND ELLIPTIC ORBITS.
by Willis,Edward A. Material type:  Book Description: 65.Publisher: Nasa, Washington, D.C. 1966Availability: Items available for reference: PK Kelkar Library, IIT Kanpur [Call number: NASA TN D-3606] (1).
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2.
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ROUND-TRIP TRJECTORIES WITH STOPOVERS AT BOTH MARS AND VENUS.
by Willis,Edward A | Pandrutt,John A. Material type: Book Description: 30.Publisher: Nasa, Washington, D.C. 1970Availability: Items available for reference: PK Kelkar Library, IIT Kanpur [Call number: NASA TN D-5758] (1).
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3.
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PARAMETRIC ANALYSIS OF PERFORMANCE AND DESIGN CHARACTERISTICS FOR ADVANCED EARTH-TO-ORBIT SHUTTLES
by Willis,Edward A,Strack,William C | Padrutt,John A. Material type: Book Description: 30.Publisher: Nasa, Washington, D.C. 1972Availability: Items available for reference: PK Kelkar Library, IIT Kanpur [Call number: NASA TN D-6767] (1).
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4.
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OPTIMIZATION OF DOUBLE-CONIC INTERPLANETARY TRAJECTORIES
by Willis,Edward A. Material type: Book Description: 39.Publisher: Nasa, Washington, D.C. 1966Availability: Items available for reference: PK Kelkar Library, IIT Kanpur [Call number: NASA TN D-3184] (1).
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5.
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Parametric analysis of performance and design characteristics for advanced earth-to-orbit shuttles [NASA TN D-6767]
by Willis, Edward A | Strack, William G | Padrutt, John A. Material type: Book Description: 30p.Publisher: Washington, D.C. National Aeronautics and Space Administration [NASA] 1972Availability: Items available for reference: PK Kelkar Library, IIT Kanpur [Call number: NASA TN D-6767] (1).
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6.
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NASA Technical Note: Comparison of trajectory profiles and nuclear-propulsion-module arrangements for manned mars and mars-venus missions
by Willis, Edward A. Material type: Book Description: 29p.Publisher: Washington, D.C. NASA 1971Availability: Items available for reference: PK Kelkar Library, IIT Kanpur (1).
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7.
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NASA Technical Note [NASA TN D-5011]: Two-burn escape maneuvers with an intermediate coasting ellipse
by Washington. National Aeronautics and Space Administration (NASA) | Willis, Edward A. Material type: Book Description: 28p.Publisher: Washington NASA 1969Availability: Items available for reference: PK Kelkar Library, IIT Kanpur (1).
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8.
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NASA TN D-6141
: approximate trajectory data for missions to the major planets
by Fishbach, Laurence H | Giventer, Lawrence L | Willis, Edward A. Material type: Book; Format:
print
; Literary form:
not fiction
Description: 213p.Publisher: Washington National Aeronautics and Space Administration 1971Availability: Items available for reference: PK Kelkar Library, IIT Kanpur (1).
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