www.ogier.com/publications/luxembourg-and-russia-agree-on-the-amendments-of-the-double-tax-treaty
Update:
www.ey.com/en_gl/tax-alerts/luxembourg-protocol-to-the-double-tax-treaty-with-russia-has-entered-into-force
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www.ogier.com/publications/luxembourg-and-russia-agree-on-the-amendments-of-the-double-tax-treaty
Update:
www.ey.com/en_gl/tax-alerts/luxembourg-protocol-to-the-double-tax-treaty-with-russia-has-entered-into-force