Rapport / Univ.i Oslo. 89-11 : How the schools can participate in measuring radon, thoron and radioactive fallout / A.Storruste,E.Larsen, 1989. - 30 p. - Текст : непосредственный.
Rapport / Univ.i Oslo. 89-24 : design of a linear amplifier for very small DC-currents, called lasc / S.Strom,A.Storruste, 1989. - 23 p. - Текст : непосредственный.