A function to retrieve the definitions for one or more published
scientific references in the Macrostrat database. By default, all reference
definitions are returned.
Usage
def_references(ref_id = NULL)
Value
A data.frame containing the following columns:
ref_id: The unique identification number(s) for the
reference(s).
pub_year: The year of publication of the reference.
author: The author(s) of the reference.
ref: The name of the reference.
doi: The digital object identifier of the reference.
url: A URL where additional information, the source, or
contributing publication can be found.
t_units: The total number of Macrostrat units associated with
the reference.
Arguments
ref_id
integer. The unique identification number(s) of the
desired reference(s) to return a definition for. If NULL (default), all
references are returned.