"Nombres, Théorie des." . . "MATHEMATICS / History & Philosophy" . . . . "Problem solving." . . "Problem solving" . "Mathematics Problems, exercises, etc." . . "Mathématiques." . . "Trigonométrie." . . . "Hungarian problem book I : based on the Eotvos competitions, 1894-1905"@en . . . . . . . . . . "Schoolboek" . . "Hungarian problem book I" . "Hungarian problem book I : based on the Eötvös Competitions, 1894-1905" . . . . . "Problems and exercises"@en . "Problems and exercises" . . . . . . . . . . "Hungarian problem book I"@en . "Hungarian problem book I" . . . . "Livres électroniques" . "Hungarian Problem Book I - based on the Eötvös Competitions, 1894-1905" . "Hungarian problem book 1 : based on the Eötvös competitions 1894-1905" . "Electronic books" . . "Hungarian problem book. Bind 1 : based on the Eötvös competitions, 1894-1905" . . . "Hungarian problem book I : based on the Eötvös competitions, 1894 - 1905" . . "Hungarian problem book : Based on the Eötvös competitions, 1894-1905" . . "Hungarian problem book I based on the Eotvos Competitions, 1894-1905" . . . "Hungarian problem book [1] : based on the Eotvos competitions, 1894-1905"@en . "Hungarian problem book : based on the Eötvös competitions, 1894-1905" . "Hungarian problem book : based on the Eötvös competitions, 1894-1905"@en . "Hungarian problem book I based on the Eötvös Competitions, 1894-1905" . . . . . . . "Hungarian problem book I : based on the Eotvos Competitions, 1894-1905" . "Hungarian problem book/ 1, Based on the Eötvös competitions, 1894-1905" . "Hungarian problem book 1 : based on the Eötvös competitions, 1894-1905" . . . . . . . . . "Hungarian problem book I Based on the Eötvös competitions, 1894-1905" . . . . "Hungarian problem book : 1 : Based on the Eötvös competitions, 1894-1905" . . . . . . "Hungarian problem book, 1. Based on the Eotvos competitions, 1894-1905" . "Matematica (Textos Gerais)" . . "Didactiek van de wiskunde." . . "Mathematical Association of America." . . "Mathematics." . . "Mathematics" . "Matemáticas Problemas y ejercicios." . .