Tove Thagaard Sem has written:
'Det ensporede system'
Helle Frisak Sem has written: 'The representation of meaning'
Osvaldo Palma has written: 'Paulipetro sem preconceitos'
F. Tramontano has written: 'Sexo sem nexo'
Ludovicus Salenses has written: 'Eu sem pejo'
Haroldo Ferreira has written: 'Banquete sem domingo'
Christina Salgado has written: 'Caminhos sem fim'
Bolivar Fontoura has written: 'Caminhada sem rumo'
Leoni Kaseff has written: 'Conceitos sem preconceitos'
Joaquim Serra has written: 'Rio sem foz'
N.K Rerikh has written: 'Sem' velikikh tain kosmosa'
Fausto Duarte has written: 'O negro sem alma'
Giovanni Ettore Nanni has written: 'Enriquecimento sem causa'