@article {1552,
	title = {The greenhouse white-fly ( Trialeurodes vaporariorum Westwood)},
	journal = {Journal of the Royal Horticultural Society},
	volume = {54},
	year = {1929},
	pages = {181-192},
	author = {Speyer, E.R.}
}
@conference {1522,
	title = {Preliminary report on the citrus scale-insects of China},
	booktitle = {Transactions, IV International Congress of Entomology, Ithaca, New York},
	volume = {2},
	year = {1929},
	pages = {897-904},
	author = {Silvestri, F.}
}
@article {1241,
	title = {Bemerkungen zu den europ{\"a}ischen Apheliniden-Gattungen (Hym., Chalc.)},
	journal = {Neue Beitr{\"a}ge zur Systematischen Insektenkunde},
	volume = {4},
	number = {13/14},
	year = {1929},
	month = {1-Oct-29},
	pages = {153-160},
	author = {Nowicki, S.}
}
@article {1125,
	title = {Afel{\'\i}nidos pal{\'e}arcticos (Hym. Chalc.), 3a nota},
	journal = {Eos. Revista Espa{\~n}ola di Entomologia. Madrid.},
	volume = {5},
	year = {1929},
	month = {30-Nov-29},
	pages = {215-222},
	author = {Mercet, R.G.}
}
