Ph.D. Natalia Petrovskaya:
benefication@protonmail.ch
https://t.me/Ph_D_Natalia_Petrovskaya
nataliapetrovsky@gmail.com
petrovskyn@yahoo.com
Ph.D. Igor Bobin:
mineral.modeling@protonmail.com
bobin.igor@yahoo.com
Ph.D. Natalia Petrovskaya and Ph.D. Igor Bobin
benefication@protonmail.ch
https://t.me/Ph_D_Natalia_Petrovskaya
nataliapetrovsky@gmail.com
petrovskyn@yahoo.com
Ph.D. Igor Bobin:
mineral.modeling@protonmail.com
bobin.igor@yahoo.com
Ph.D. Natalia Petrovskaya and Ph.D. Igor Bobin
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