Otavan Suuri Ensyklopedia (1976–91)

• Large articles on Russian and Slavic Literature (Russian literature, Polish literature, Socialist realism, Aitmatov, Andric, Babel, Belinski, Bitov, Blok, Bulgakov, Chapek. Dostojevski, Erenburg, Fedin, Gogol, Gontšarov, Gorki, Grossman, Hashek, Herzen, Jesenin, Jevtushenko, Leonov, Lermontov, Lomonosov, Majakovski, Mandelstam, Mickiewicz, Okudzhava, A. Ostrovski, Pasternak, Paustovski, Pushkin, Simonov, Sholohov, Solzhenitsyn, Shukshin, A.Tolstoi, L. Tolstoi, Trifonov, Tvardovski, Zamjatin)

Spectrum, Facta 2001 and Tiedon Värikäs Maailma

• Articles (larger and smaller, ca.200)