@article {kottegoda2011green,
	title = {A green slow-release fertilizer composition based on urea-modified hydroxyapatite nanoparticles encapsulated wood},
	journal = {Current science},
	year = {2011},
	pages = {73{\textendash}78},
	publisher = {Current Science Association},
	author = {Nilwala Kottegoda and Munaweera, Imalka and Madusanka, Nadeesh and Karunaratne, Veranja}
}
