[1] World Dual Petin-Meton Calendar Date Conversion Software, 10/5/2022, 5:19:23 PM, 3/16/2023, 8:53:09 AM 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
Google search: Lunar Petin-Meton Calendar