# High-redshift BL Lac Objects: Spectroscopy of Candidates

> Research article (The Astrophysical Journal, 2018) · cited 30× · AI/ML

**Wikidata**: [openalex:W2800763517](https://www.wikidata.org/wiki/openalex:W2800763517)  
**Source**: https://4ort.xyz/entity/high-redshift-bl-lac-objects-spectroscopy-of-candidates