Reduced bases for lattices and factorization of polynomials H. W. LENSTRA Jr. Seminaire de Théorie des Nombres de Bordeaux
Generating units modulo an odd integer by addition and subtraction H. W. Lenstra, Jr. — 1993 Acta Arithmetica
Artin's conjecture on primes with prescribed primitive roots H. W., Jr. Lenstra Séminaire Delange-Pisot-Poitou. Théorie des nombres