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@article{MO_2003_26_3_a0, author = {A. Pontryagina}, title = {Foreword (or {Afterword)}}, journal = {Matemati\v{c}eskoe obrazovanie}, pages = {2--5}, publisher = {mathdoc}, volume = {26}, number = {3}, year = {2003}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MO_2003_26_3_a0/} }
A. Pontryagina. Foreword (or Afterword). Matematičeskoe obrazovanie, Tome 26 (2003) no. 3, pp. 2-5. http://geodesic.mathdoc.fr/item/MO_2003_26_3_a0/