MUFON UFO Journal - 1981 9. September
MUFON UFO Journal - 1983 4. April
MUFON UFO Journal - 1984 5.-6. May_June
MUFON UFO Journal - 1981 6. June
MUFON UFO Journal - 1980 9. September
MUFON UFO Journal - 1984 2. February
MUFON UFO Journal - 1983 7. July
MUFON UFO Journal - 1981 8. August
MUFON UFO Journal - 1984 9. September
