@article {demange2013note,
	title = {A note on the NP-hardness of two matching problems in induced subgrids},
	journal = {Discrete Mathematics and Theoretical Computer Science},
	volume = {15},
	number = {2},
	year = {2013},
	pages = {233{\textendash}242},
	author = {Demange, Marc and Ekim, Tinaz and others}
}
