Complex sentence: After the talks Kivimies wrote in her memoir as pen name Irja Niemi which was in 1944 published by Oy Suomen Kirja, the name of the book was "Neuvostokasvatti".
Split into simpler sentences: After the talks Kivimies wrote her memoir under the pen name Irja Niemi, which was in 1944 published by Oy Suomen Kirja. The name of the book was "Neuvostokasvatti".