@article{AMI_2011_38_a14, author = {Attila Egri-Nagy}, title = {"How to solve it?" - {The} tsumego session}, journal = {Annales mathematicae et informaticae}, pages = {137--145}, publisher = {mathdoc}, volume = {38}, year = {2011}, language = {en}, url = {http://geodesic.mathdoc.fr/item/AMI_2011_38_a14/} }