There are many transliteration schemes for writing Sanskrit using Latin script. Most commonly used are IAST (International Alphabet of Sanskrit Transliteration), which is the academic standard and includes diacritical marks. Other transcription schemes have evolved due to difficulties representing Sanskrit characters in computer systems. These include Harvard-Kyoto that was used earlier, and ITRANS, a lossless transliteration scheme that is used widely on the Internet.
For scholarly work, Devanagari has generally been preferred for the transcription and reproduction of whole texts and lengthy excerpts; however, references to individual words and names in texts composed in European languages are usually represented using Roman transliteration.