@Article{LUW2013,
	author =  	{Dorota Leszczy\'{n}ska-Jasion and Mariusz Urba\'{n}ski and Andrzej Wi\'{s}niewski},
	title = 	{Socratic Trees},
	journal = 	{Studia Logica},
	year = 		{2013},
	volume = 	{101},
	pages = 	{959-986},
}