scopus_extract_dois: Extract, clean and optionally export DOIs

In scopusflow: A Reproducible Workflow Layer for 'Scopus' Bibliographic Searches

Extract, clean and optionally export DOIs

Description

Pulls Digital Object Identifiers from a scopus_records object (or a bare character vector), normalises them and removes missing values. The resulting list can be imported into a reference manager such as Zotero to assemble a bibliography.

Usage

scopus_extract_dois(x, dedupe = TRUE, file = NULL)

Arguments

x	A scopus_records tibble, or a character vector of DOIs.
dedupe	Logical, dropping duplicate DOIs by default.
file	Optional path at which to write the DOIs as a single-column CSV. A file is written only when this argument is supplied, and only to the exact path given, so the package always leaves the working directory untouched unless asked. Parent directories are assumed to exist already.

Details

Normalisation trims surrounding whitespace and strips common resolver prefixes (⁠https://doi.org/⁠, ⁠http://dx.doi.org/⁠, ⁠doi:⁠) so that the same article is counted once even when its DOI is formatted differently in two records. Because DOIs are case-insensitive, comparison and deduplication ignore case, while the output keeps the original casing.

Value

A character vector of cleaned DOIs, returned invisibly when file is written.

See Also

scopus_diff_dois() to compare two retrievals.

Examples

recs <- scopus_records(list(entry = list(
  list(`prism:doi` = "10.1/AAA"),
  list(`prism:doi` = "https://doi.org/10.1/aaa"),
  list(`prism:doi` = NULL)
)))
scopus_extract_dois(recs)

# Write to a temporary file (never the working directory).
path <- tempfile(fileext = ".csv")
scopus_extract_dois(recs, file = path)

scopusflow documentation built on June 20, 2026, 5:06 p.m.