*''St [[Seraphim of Sarov]] - a spiritual biography'', New Sarov Press, 1994. (According to Metropolitan [[Kallistos (Ware) of Diokleia|Kallistos Ware]], has suggested that there are 'some doubts have been expressed whether this is actually the work of Fr. Lazarus, at any rate in its present form'.)<ref>[Bishop Kallistos of Diokleia, 'Foreward', in Ignatius Brianchaninov, ''On the Prayer of Jesus'' (Boston, MA: New Seeds, 2006) p. xx.)</ref>]