Taboga, 24, is a centre-back who was with Second Division side SC Kapfenberg last season while striker Bauer, 20, is in the first-team squad at top-flight side Admira Wacker.
Caley Thistle boss Charlie Christie said: "These lads fit into our wage structure and if they show up well then one or both could be invited to our Italian training camp on July 15."
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