This article, footnote 40, refers to two responsa, neither of which I can track down:
- Tz’ror ba-Kessef YD 18 (there is a Tz’ror ha-Kessef, which may be what is meant, but if so I’ve been unable to find a legible copy of it online, so any help there would be much appreciated!)
- Ikkurei Dinnim 1, OC 40 (I can’t find anything beyond OC 36 in any of the editions I’ve looked in)
Can anyone help? Many thanks!