@article {8162,
	title = {Adaptation and evolution in Dicentra (Fumariaceae), with special reference to seed, fruit, and dispersal mechanism},
	journal = {Nytt Mag. Bot.},
	volume = {16},
	year = {1969},
	month = {1969///},
	pages = {49 - 75},
	author = {Berg, R.Y.}
}
@article {8047,
	title = {The North American sunflowers (Helianthus)},
	journal = {Mem. Torrey Bot. Club},
	volume = {22},
	year = {1969},
	month = {1969///},
	pages = {1 - 218},
	author = {C.B. Heiser and D.M. Smith and S. Clevenger and W.C. Martin}
}
@article {7793,
	title = {Zur Karpobiologie, Karpologie und Verbreitung der Art Iva xanthiifolia Nutt. in der Tschechoslowakei},
	journal = {Folia Geobot. Phytotax},
	volume = {4},
	year = {1969},
	month = {1969///},
	pages = {415 - 434},
	author = {B. Lhotsk{\'a} M. \& Slav{\'\i}k}
}
@article {7478,
	title = {Zur Soziologie und Propagation von Iva xanthiifolia im Stadtgebiet von Mainz},
	journal = {Decheniana},
	volume = {122},
	year = {1969},
	month = {1969///},
	pages = {147 - 157},
	author = {H.A. Froebe and A. Oesau}
}
@article {7348,
	title = {Ornithopus compressus},
	journal = {Bull. Kent Field Club},
	volume = {14},
	year = {1969},
	month = {1969///},
	author = {D. McClintock}
}
@article {7405,
	title = {An agronomic and taxonomic overview of the genus Melilotus Mill},
	journal = {Can. J. Plant Sc},
	volume = {49},
	year = {1969},
	month = {1969///},
	pages = {1 - 20},
	url = {http://pubs.aic.ca/doi/pdf/ 10.4141/cjps69-001]},
	author = {G.A. Stevenson}
}
@article {7093,
	title = {Verbreitung der Iva xanthiifolia Nutt. und ihr Vorkommen in den Pflanzengesellschaften in der _SSR},
	journal = {Biol{\'o}gia},
	volume = {24},
	year = {1969},
	month = {1969///},
	pages = {738 - 759},
	author = {T. Krippelov{\'a}}
}
@article {berg_adaptation_1969,
	title = {Adaptation and evolution in Dicentra (Fumariaceae), with special reference to seed, fruit, and dispersal mechanism},
	journal = {Nytt Mag. Bot.},
	volume = {16},
	year = {1969},
	pages = {49{\textendash}75},
	author = {Berg, {R.Y.}}
}
