Regarding Remarao et al :-
I don;t remember Mizuno mentioning Samarium,---so not a replication but an analogue
experiment.
Dennis Cravens used Sm in his 'Hot Balls' demonstration and i seem to recollect Jean-Paul
Biberian using Sm in an experiment but I can't remember why.
BTW I received my ZOOM link for ICCF23 last night !