David Swart

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An efficient algorithm for computing the i th letter of 4 n a

Jeffrey Shallit, David Swart, 1999, SODA 1999.

An efficient algorithm for computing the ith letter of φ n (a)

Jeffrey Shallit, David Swart, 1999, SODA 1999.

An Efficient Algorithm for Computing the ith letter of 4na

Jeffrey Shallit, David Swart, 1999, SODA.