References for Leontius

[Matteo]

Hi

I hope it is the correct board for this request. I'm looking for these three articles about Leontius:

1- Salomon  Maciej,  Acclamation or barbarism in the legend of Leontius' (484-488) solidus.  Polish numismatic news, 5 (1990 1991) pag. 154-159 â€" Wiadomosci Numizmatyczne 34 

2- M. Rolland, Monnaies rares des Ve et VIe siècles: un aes 4 inédit de l’usurpateur Leontius (484), CN 1976, 6-7

3- D.R. Walker, A copper coinage for Leontius I, in Spink's Numismatic Circular n. LXXV â€" London 1967 â€" 10, pp. 264-265

Does anyone has these articles? Eventually, do you know where I can find them?

Thanks,
Matteo