title: Martian craters: comparison of statistical counts.
abstract: Comparisons of the various crater counts obtained from the Mariner IV photographs indicate that, out of 300 to 600 possible craters mapped by different investigators, only about 120 craters can be reliably identified. Thus, only a lower limit for the Martian crater density can be established from the Mariner IV data.
authors.forename: A B
authors.initials: AB
authors.lastname: Binder