If you are looking for a physical paper folding guide, "126044" is the asset ID for the Zebra Canard Paper Airplane featured in the Smithsonian's How Things Fly Paper Airplane Gallery .
Which of these specific or databases were you looking to explore further?
AlN nucleation and spontaneous pattern formation via combustion of an Al-C-AlF3 mixture in nitrogen published in the Journal of Crystal Growth (Article Number: 126044 ). ⚖️ Criminal Justice & Government Reports
The number corresponds to several different documents and academic papers depending on the database or system you are referencing.