The I.O.T.A. References are divided into groups
Iota Ref: AN-002 - BOUVET ISLAND
Iota Ref: AN-006 - GRAHAM LAND W (BISCOE ISLS) GR.
Iota Ref: AN-007 - SOUTH GIORGIA ISLAND
Iota Ref: AN-008 - SOUTH ORKNEY ISLANDS
Iota Ref: AN-010 - SOUTH SHETLAND ISLS.
Iota Ref: AN-011 - ROSS ISL GR.
Iota Ref: AN-013 - TRINITY PENINSULA GR.
Iota Ref: AN-014 - ANTARCTICA