1.
Brun V, Knudsen FF. On the Possibility of Finding Certain Criteria for the Irrationality of a Number Defined as a Limit of a Sequence of Rational Numbers. Math. Scand. [Internet]. 1972 Jun. 1 [cited 2024 May 6];31:231-6. Available from: https://www.mscand.dk/article/view/11429