Problem 11162. - Paolo Perfetti (Am. Math. Mon., 2005)

Problem 11221. - Paolo Perfetti (Am. Math. Mon., 2006)

Problem 11260. - Paolo Perfetti (Am. Math. Mon., 2006)

Series with Sines: 11162. - Paolo Perfetti; et al. (Am. Math. Mon., 2007)

Differentiable and Discontinuous Densely: 11221. - Paolo Perfetti; Richard Bagby (Am. Math. Mon., 2008)

Evaluate the Series: 11260. - Paolo Perfetti; Richard Stong (Am. Math. Mon., 2008)

Problem 11409. - Paolo Perfetti (Am. Math. Mon., 2009)

Problem 11473. - Paolo Perfetti (Am. Math. Mon., 2009)