O Fermatových číslech
On some Formulas Involving !n and the Verification of the !n-hypothesis by use of Computers
On the -th extension of the sieve of Eratosthenes.
On the l-divisibility of the relative class number of certain cyclic number fields
On the l-divisibility of the relative class number of certain cyclic number fields
On the order of the Mertens function.
On the product of three homogeneous linear forms