Template:LinkOnline

{{LinkOnline|online|https://journal.fi/htf/article/view/65704|free}}
{{LinkOnline|DOI|10.1002/ange.19250381509|restricted}}
{{LinkOnline|GB|7SQDAAAAMBAJ|PA591}}

• (online, free)
• (DOI: 10.1002/ange.19250381509, restricted)
• (Google Books)