@article {25654,
	title = {Noctilucent clouds},
	volume = {28},
	year = {1934},
	pages = {249-272, 303-317},
	publisher = {Journal of the Royal Astronomical Society of Canada},
	url = {http://adsabs.harvard.edu/full/1934JRASC..28..249V},
	author = {Vestine, E. H.}
}
