Gaussian measures and covering theorems David Preiss (1979) Commentationes Mathematicae Universitatis Carolinae
Gaussian measures and the density theorem David Preiss (1981) Commentationes Mathematicae Universitatis Carolinae
Generalized Vitali systems of uniform type Leif Mejlbro (1987) Acta Universitatis Carolinae. Mathematica et Physica