I can show an example of use both, prime (as soft sign) and apostroph (hemisoft) in Cyrilic-based phonetic transcription (Orthoepic Dictionary of Ukrainian, http://padaread.com/?book=84816&pg=6 http://padaread.com/?book=84816&pg=7)
- transliteration of mjagkij znak (Cyrillic soft sign) Otto Stolz
- Re: transliteration of mjagkij znak (Cyrillic soft ... Michael Everson
- Re: transliteration of mjagkij znak (Cyrillic s... Asmus Freytag (t)
- Re: transliteration of mjagkij znak (Cyrill... Charlie Ruland
- Re: transliteration of mjagkij znak (Cy... Asmus Freytag (t)
- Re: transliteration of mjagkij zna... Michael Everson
- RE: transliteration of mjagkij... Martin Heijdra
- Re: transliteration of mjagkij znak (Cyrillic soft ... QSJN 4 UKR
- Re: transliteration of mjagkij znak (Cyrillic s... Konstantin Ritt
- Re: transliteration of mjagkij znak (Cyrillic s... Asmus Freytag (t)
- Re: transliteration of mjagkij znak (Cyrillic soft ... QSJN 4 UKR