Write SQL query to solve given problem: How many papers are published in year 2000 under the conference "SSPR"?. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT COUNT(T1.Id) FROM Paper AS T1 INNER JOIN Conference AS T2 ON T1.ConferenceId = T2.Id WHERE T1.Year = 2000 AND T2.ShortName = 'SSPR'