[1] World Dual Petin-Meton Calendar Date Conversion Software, 2022-10-05T17:19:23.000Z, 2023-03-16T08:53:09.860Z https://www.hermetic.ch/cal_sw/wdpm/wdpm.htm

[2] >>1 に実装があります。

[3] The Lunar Petin-Meton Calendar : 太陰太陽暦

[4] The Solar Petin-Gregorian Calendar : グレゴリオ暦 + The Lunar Petin-Meton Calendar の週