Select publications using combinations of the operators and functions in the right-hand panel.
| + | plus | Union of the two sets. | 
|---|---|---|
| - | minus | Difference between first and second set. | 
| # | hash | Intersection between the two sets. | 
| ^ | hat | Symmetric difference between the two sets. | 
Operators are evaluated left-to-right; same precedence. Use parenthesis ( ) to control the evaluation order.
| year(year) | Select by year published. | 
|---|---|
| label(label) | Select by label. Character case is ignored. May contain wildcard '*' at the end. Use double-quotes around the value if it contains parentheses. | 
| author(name) | Select by author name of the form "family initials". Character case is ignored. May contain wildcard '*' at the end. | 
| orcid(orcid) | Select by researcher ORCID. | 
| issn(code) | Select by journal ISSN code. | 
| published(date) | Select published (official journal date) after the given date, of the form YYYY-MM-DD. | 
| first(date) | Select published first (official journal date or online) after the given date, of the form YYYY-MM-DD. | 
| online(date) | Select published online after the given date, of the form YYYY-MM-DD. | 
| modified(date) | Select modified after the given date, of the form YYYY-MM-DD. | 
| active(year) | Select publications for labels active in the given year. If no year value is given, this means the 'current' year. | 
| no_doi() | Select publications lacking DOI. | 
| no_pmid() | Select publications lacking PMID (PubMed identifier). | 
| no_label() | Select publications lacking label. | 
Labelled by 'ABC' and published during 2020, excluding those also
labelled 'XYZ':
label(ABC) # year(2020) - label(XYZ)
Labelled by 'ABC', excluding those published during 2020 except those
labelled 'XYZ':
label(ABC) # (year(2020) - label(XYZ))
All published during 2020 except those labelled 'ABC' having an
author with a name beginning with an "a" (case is ignored):
year(2020) - (label(ABC) # author(a*))
A label having a parentheses within it; use double-quotes.
label("ABC (minor)")