Published in Bollettino Malacologico, in 1992, in volume 28, pages 1-26

Published in Bollettino Malacologico, in 1992, in volume 28, pages 35-46

Published in Bollettino Malacologico, in 1992, in volume 28, pages 145-148

Published in Bollettino Malacologico, in 1992, in volume 28, pages 153-156

Published in Bollettino Malacologico, in 1992, in volume 28, pages 169-176

Published in Bollettino Malacologico, in 1992, in volume 28, pages 195-202

Published in Bollettino Malacologico, in 1992, in volume 28, pages 231

Published in Bollettino Malacologico, in 1992, in volume 28, issue 1-4, pages 47-54

Published in Bollettino Malacologico, in 1992, in volume 28, issue 1-4, pages 69-82

Published in Bollettino Malacologico, in 1992, in volume 28, issue 1-4, pages 93-95

Published in Bollettino Malacologico, in 1992, in volume 28, issue 1-4, pages 96-97

Published in Bollettino Malacologico, in 1992, in volume 28, issue 5-12, pages 149-152

Published in Bollettino Malacologico, in 1992, in volume 28, issue 5-12, pages 157-160

Published in Bollettino Malacologico, in 1992, in volume 28, issue 5-12, pages 203-206

Published in Bollettino Malacologico, in 1992, in volume 28, issue 5-12, pages 221-224

Published in Bollettino Malacologico, in 1992, in volume 28, issue 5-12, pages 229-230