Робърт Годард (Bulgarian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Робърт Годард" in Bulgarian language version.

refsWebsite

Global rank Bulgarian rank

2web.archive.org

1^st place

1^st place

340^th place

448^th place

163^rd place

249^th place

1astronautix.com

2,056^th place

1,005^th place

75^th place

62^nd place

astronautix.com

Goddard // Astronautix.

google.com

Rocket Apparatus // Patents. Google. Посетен на 1 май 2010.

nasa.gov

history.nasa.gov

A Chronology is Missile and Astronautic Events 1686 – 1961 (PDF) // NASA/U.S. GPO. Архивиран от оригинала на 2017-12-25. Посетен на 2012-06-07.

si.edu

nasm.si.edu

Goddard Rocket: Milestones of Flight // Exhibition. Smithsonian Institution. Архив на оригинала от 2012-04-19 в Wayback Machine..

web.archive.org

Goddard Rocket: Milestones of Flight // Exhibition. Smithsonian Institution. Архив на оригинала от 2012-04-19 в Wayback Machine..
A Chronology is Missile and Astronautic Events 1686 – 1961 (PDF) // NASA/U.S. GPO. Архивиран от оригинала на 2017-12-25. Посетен на 2012-06-07.