Write SQL query to solve given problem: How many papers were published in the journal "Concepts in Magnetic Resonance Part A"?. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT COUNT(T2.Id) FROM Journal AS T1 INNER JOIN Paper AS T2 ON T1.Id = T2.JournalId WHERE T1.FullName = 'Concepts in Magnetic Resonance Part A'