v. 87: no. 1 (2013: Jan. / Feb.)

v. 87: no. 2 (2013: Mar. / Apr.)

v. 87: no. 3 (2013: May / June)

v. 87: no. 4 (2013: July / Aug.)

v. 87: no. 5 (2013: Sept. / Oct.)

v. 87: no. 6 (2013: Nov. / Dec.)