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urtite

Petrologii͡a iĭolit-urtitov Khibin i zakonomernosti razmeshchenii͡a v nikh zalezheĭ apatita

By A. A. Arzamast͡sev

I͡A︡kupirangit-urtitovai͡a︡ serii͡a︡ shchelochnykh porod

By V. A. Kononova

Iĭolit-urtity Khibinskogo massiva

By T. N. Ivanova

Stadiĭnostʹ formirovanii͡a Mukhalʹskogo shchelochnogo massiva

By T. T. Vrublevskai͡a