@book{senner2012kleiner,
  address = {Ravensburg},
  author = {Senner, Katja and Grimm, Sandra},
  interhash = {c6241c9d878a7cbee75f0d82b2bde24b},
  intrahash = {ec1761cb38f2dea90672c48d98694c0a},
  isbn = {9783473432943 3473432946},
  publisher = {Ravensburger Buchverl.},
  refid = {775712854},
  title = {Mein kleiner Bauernhof},
  url = {http://www.amazon.de/gp/product/3473432946/ref=s9_simh_gw_p14_d1_i2?pf_rd_m=A3JWKAKR8XB7XF&pf_rd_s=center-2&pf_rd_r=0T3EV3NGSPPDXWZVMHZ2&pf_rd_t=101&pf_rd_p=463375173&pf_rd_i=301128},
  year = 2012
}