Jatkuu: Evaluation and new developments (1987) ; Comparison of snow gauges used in Nordic countries. Part I: System description (1988) ; On the influence of radiosonde lag error on upper-air climatological data in Finland 1951-1988 (1990, Asko Tuomisen kanssa) ; Some features of ground inversions in Finland (1991, Maija-Leena Luukkasen ja Asko Tuomisen kanssa) ; How to maintain and improve the accuracy of meteorological measurements (1991).