@article {1245,
	title = {Untersuchungen zur sicherung der Best{\"a}ubung von Rotklee},
	journal = {Acta Agric. Fennica},
	volume = {83},
	year = {1955},
	pages = {205-220},
	author = {Valle, O.}
}
@article {1243,
	title = { Pollination and seed setting in tetraploid red clover in Finland},
	journal = {Acta Agric. Fennica},
	volume = {95},
	year = {1959},
	pages = {1-35},
	author = {Valle, O.}
}
@article {1239,
	title = {Pollination and seed setting in tetraploid red clover in Finland II.},
	journal = {Acta Agric. Fennica},
	volume = {97},
	year = {1960},
	pages = {1-64},
	author = {Valle, O. and Salminen, M. and Huokuna, E.}
}
