The popularity of birding is still growing. Cordell, H. & Herbert, N. Birding, 34:54–59, 2002.
bibtex   
@article{cordell_popularity_2002,
	title = {The popularity of birding is still growing.},
	volume = {34},
	language = {en},
	journal = {Birding},
	author = {Cordell, H.K. and Herbert, N.G.},
	year = {2002},
	pages = {54--59},
}

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