6.  The applicants were born in 1928 and 1936 respectively and live in Novosibirsk. 7.  The applicants receive old-age pensions. The Law of 21 July 1997 on the Calculation and Upgrading of State Pensions (“the Pensions Act”) introduced, from 1 February 1998 onwards, a new method for calculating pensions. The idea behind this method, based on what is known as an “individual pensioner coefficient”, was to link the pension to the pensioner's previous earnings. 8.  The authority in charge of the applicants' pension, the Pension Fund Agency of the Zheleznodorozhniy District of Novosibirsk (“the Agency”), fixed the applicants' coefficient at 0.525. The applicants challenged the Agency's decision in the Zheleznodorozhniy District Court of Novosibirsk. They argued that their coefficient should be 0.7. 9.  On 13 August 1999 the District Court found for the applicants, considering that the Agency had misinterpreted the Pensions Act. In particular, it held as follows:
“The opinion of [the Agency] ... is unfounded because Article 4 [of the 1997 Pensions Act] specifically indicates that the individual pensioner coefficient ... is fixed at the rate of 0.7. [The Agency] has no grounds to interpret this provision of the law arbitrarily or not to enforce it.”
The District Court decided that the Agency was to recalculate the applicants' pensions using a coefficient of 0.7 from 1 February 1998. 10.  The Agency appealed against the judgment. On 19 October 1999 the Novosibirsk Regional Court upheld the judgment, which became enforceable on the same day. The judgment was never executed. 11.  On 29 December 1999 the Ministry of Labour and Social Development (“the Ministry”) issued an Instruction on the “Application of Limitations” established by the Pensions Act (“the Instruction”). The Instruction clarified how to apply the Pensions Act. 12.  Some time thereafter a group of individuals challenged the Instruction before the Supreme Court of the Russian Federation. On 24 April 2000 the Supreme Court dismissed the complaint. It found that, contrary to what the complainants had suggested, the Ministry of Labour had not acted ultra vires in issuing the Instruction, and that the Ministry's interpretation of the Pensions Act had been correct. On 25 May 2000 the Cassation Division of the Supreme Court upheld this judgment on appeal. 13.  On 30 August 2000 the Agency lodged an application with the District Court for the reconsideration of the applicants' case owing to newly discovered circumstances. 14.  On 7 February 2001 the District Court examined the Agency's request. It noted that the Instruction had been upheld by the Supreme Court and held as follows:
“As it can be seen from [the Instruction], the decision of the RF Supreme Court of 24 April 2000 and the decision of the Cassation Division of the RF Supreme Court of 25 May 2000, the limiting coefficient of 0.7, which was established by [the Pensions Act], ... does not apply to [an 'individual pensioner coefficient'].
The existence of the interpretation [of the Pensions Act] by the Ministry of Labour constitutes a significant circumstance.
In accordance with ...article 333 of [the CCivP] the ground for reconsideration of judgments ... on the basis of newly discovered circumstances shall be a significant circumstance which was not and could not have been known to a complainant. ...
Therefore there are grounds for reconsideration of the judgment of the district court of 13 August 1999 owing to newly discovered circumstances.”
The court noted that the Agency's application was not time barred. 15.  In a decision of 7 February 2001 the District Court granted the Agency's application, under Article 337 of the Code of Civil Procedure, and quashed the judgment of 13 August 1999, as upheld on 19 October 1999. 16.  As a result of the fresh examination of the case the District Court delivered a judgment of 27 February 2001 in which it relied on the Instruction and rejected the applicants' claims in full. The applicants appealed against the judgment. 17.  From 1 May 2001, following changes to the pension regulations, the applicants' pensions were calculated based on coefficients of 0.816 and 0.804 respectively. 18.  On 21 June 2001 the Novosibirsk Regional Court dismissed the applicants' appeal and upheld the judgment of 27 February 2001.