Solution to problem 90-12 : Two integrals arising from a cloud model

No abstract

Solution to Problem 92-11* : On alternating multiple sums

No abstract

Solution to problem 77-20 : When is the modified Bessel function equal to its derivative?

No abstract

Solution to Problem 93-15 : Two integrals arising from a reaction-diffusion problem

No abstract

Solution to problem 82-4 : A volume problem

No abstract