1970-1971/17/4

Weak forms of Mann's density theorem extended to sets of lattice points

The number of k-free divisors of an integer

Some properties of Davenport-Schinzel sequences

A combinatorial problem connected with differential equations II

Density inequalities for a restricted sum of sets of lattice points

On the representation of integers by certain binary cubic and biquadratic forms

Interpolation series for continuous functions on π-adic completions of GF(q, x)

On the changes of sign of a certain class of error functions