1990 Becomes a member of the KAKTus Kunstverein of Lüdinghausen.
Draws the sketch for a 23-piece patchwork tapestry, donated to support a project in Mtendere (Zambia).
Participates in the group exhibition “Galerie im kleinen Haus”, opened in November in Lüdinghausen.
Participates in the group exhibition “9 Künstler aus Lüdinghausen”, opened in December at the Münsterlandmuseum of Burg Vischering.
Exhibition “Vater und Sohn im Spiegel der Kunst” is opened in December in Kreis Coesfeld (Germany).
The volume Marturisiri si reflectii ale unui colectionar de arta / Confessions and Reflections of an Art Collector, by Dorina Munteanu, dedicates a chapter to the artist.
In the period 1990–1992, signs his works Stefan.
1991 Moves to Breslauerring (Lüdinghausen) and arranges his studio in the apartment.
Participates in the Kunst Markt of Burg Vischering (Lündinghausen), opened in November.
1992 Participates in the “Hamaland Kreis der Künste”, an exhibition opened in May in the townhall of Bocholt (Germany).
“Neue Wege, neue Bilder”, a solo exhibition opened in May in the OK Center Dülmen (Germany).
Participates in the “Hamaland Kreis der Künste”, opened in August in Prince’s Hall of the Ahaus Castle (Germany).
Since 1992 signs stefanescu (in small letters), followed by a short-rendered date to which a figure and the letter D – 1/D, 2/D, a.s.o. – are added, expressing the number of years his wife Alexandra has “happily” survived the cancer surgical intervention.
1993 Is successfully operated at the Uniklinik of Münster (Germany) – they replace his aortic valve and make two bypasses.
Resumes drawing and graphics, the best therapy, the artist considers, is art making.
1994 Exhibition in Singapore, together with the private Skillicorn Collection’s itinerancy.
1995 Returns for a short time to Bucharest. Calls on Mircea Penciulescu and Dragos Morarescu and revisits the Museum of Art Collections, the National Museum of Art, different art exhibitions.
1996 Solo exhibition opened in August at the Noran Gallery from Lüdinghausen