http://science.jrank.org/pages/4466/Motion-Pictures-invention-motion-pictures.html
http://www.angelfire.com/film/eliab/intro.html
http://www.acmi.net.au/aic/MAGIC_MACHINES_2.html
https://web.archive.org/web/20070903090847/http://www.acmi.net.au/AIC/MAGIC_MACHINES_2.html
http://www.acmi.net.au/AIC/VON_UCHATIUS_BIO.html
https://web.archive.org/web/20070904125858/http://www.acmi.net.au/AIC/VON_UCHATIUS_BIO.html
http://www.animated-divots.com/chrnearl.html
https://web.archive.org/web/20070820165955/http://www.animated-divots.com/chrnearl.html
http://www.terramedia.co.uk/Chronomedia/years/1850-1854.htm
http://sophia.javeriana.edu.co/~ochavarr/computer_graphics_history/historia/
https://web.archive.org/web/20070629061126/http://sophia.javeriana.edu.co/~ochavarr/computer_graphics_history/historia/
http://www.filmreference.com/encyclopedia/Academy-Awards-Crime-Films/Cartoons.html
https://en.wikisource.org/wiki/1911_Encyclop%C3%A6dia_Britannica/Gunpowder
https://en.wikisource.org/wiki/1911_Encyclop%C3%A6dia_Britannica/Bronze
http://www.mspong.org/cyclopedia/metallurgy.html
https://web.archive.org/web/20071012091846/http://www.mspong.org/cyclopedia/metallurgy.html
http://www.aerodacious.com/Left002.HTM
http://www.wnyc.org/books/1324
https://web.archive.org/web/20050930075225/http://www.wnyc.org/books/1324
https://books.google.com/books?id=YSSPAgAAQBAJ&pg=PT43&dq=balloon+bomb+venice+first&hl=en&sa=X&ved=0ahUKEwj836Sd1ZTcAhUHDMAKHcCCCCwQ6AEIKzAB#v=onepage&q=balloon%20bomb%20venice%20first&f=false
https://books.google.com/books?id=WytEDQAAQBAJ&pg=PA355&dq=balloon+bomb+venice+first&hl=en&sa=X&ved=0ahUKEwj836Sd1ZTcAhUHDMAKHcCCCCwQ6AEISzAH#v=onepage&q=balloon%20bomb%20venice%20first&f=false
https://books.google.com/books?id=pDARBQAAQBAJ&pg=PT19&dq=vulcano+carrier&hl=en&sa=X&ved=0ahUKEwjhksP6iZncAhWrDsAKHVZ3AqYQ6AEILDAB#v=onepage&q=vulcano%20carrier&f=false
https://books.google.com/books?id=3ak7CQAAQBAJ&pg=PA66&dq=vulcano+carrier+1849&hl=en&sa=X&ved=0ahUKEwjZifuNipncAhVlDMAKHYBbDQYQ6AEIMjAC#v=onepage&q=vulcano%20carrier%201849&f=false
https://books.google.com/books?id=srknAAAAMAAJ&q=vulcano+balloon+venice&dq=vulcano+balloon+venice&hl=en&sa=X&ved=0ahUKEwj10vOloJncAhUqLcAKHQ5oCFA4ChDoAQg3MAM
https://books.google.com/books?hl=en&lr=&id=HDoJDgAAQBAJ&oi=fnd&pg=PP1&dq=vulcano+balloon+venice&ots=y-efFSGyHo&sig=Vql-Rx0mRxaCXUKnhBLyLRFo65E&redir_esc=y#v=onepage&q=vulcano&f=false
https://books.google.com/books?id=7pS1QpH8FRgC&pg=PA9&dq=1807+balloon+denmark+blockade&hl=en&sa=X&ved=0ahUKEwjuns6QzJTcAhVMI1AKHfnMAA4Q6AEIJzAA#v=onepage&q&f=false
https://books.google.com/books?id=Z-us-l3qOVwC&pg=PA17&dq=balloon+moscow+siege+fire&hl=en&sa=X&ved=0ahUKEwjY2I-gzpTcAhWHMewKHQFmBq0Q6AEIJzAA#v=onepage&q=balloon%20moscow%20siege%20fire&f=false
https://repository.si.edu/bitstream/handle/10088/18679/SAoF-0009-Lo_res.pdf
http://aeiou.iicm.tugraz.at/aeiou.encyclop.u/u081761.htm;internal&action=_setlanguage.action?LANGUAGE=en
http://wwwapp.bmbwk.gv.at/cgi-bin/koepfe.cgi?1020
https://catalogue.bnf.fr/ark:/12148/cb10728489d
https://data.bnf.fr/ark:/12148/cb10728489d
https://d-nb.info/gnd/117680281
http://isni.org/isni/0000000055334957
https://id.loc.gov/authorities/names/nb2004309166
https://aleph.nkp.cz/F/?func=find-c&local_base=aut&ccl_term=ica=mzk2005300578&CON_LNG=ENG
https://viaf.org/viaf/15552402
https://www.worldcat.org/identities/containsVIAFID/15552402