@conference {28509,
	title = {New Clues on the Model of YY Her after two Seasons},
	volume = {20},
	year = {2004},
	month = {2004/07/1},
	pages = {222 - 222},
	abstract = {During two observational seasons of international campaign of YY Her we secured photometric data which covered the primary as well as the secondary minima and revealed unexpected outburst activity of this system.},
	keywords = {Campaign, Photometry, Stars: Individual (YY Her), Stars: Symbiotic},
	url = {https://ui.adsabs.harvard.edu/abs/2004RMxAC..20..222H},
	author = {Hric, L. and G{\'a}lis, R. and Dobrotka, A. and Simon, V. and Petr{\'\i}k, K. and Niarchos, P. and Velic, Z. and Gazeas, K. and Smelcer, L. and H{\'a}jek, P. and Sobotka, P. and Koss, K. and Br{\'a}t, L. and Lomoz, F.}
}
