@article{AMC_2016__10_2_a1,
     author = {Jozef \v{S}ir\'a\v{n} and Martin \v{S}koviera},
     title = {
		{GEMS} 2013
	},
     journal = {Ars Mathematica Contemporanea},
     publisher = {mathdoc},
     volume = {10},
     number = {2},
     year = {2016},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AMC_2016__10_2_a1/}
}