@article {7170, title = {Drawings of Scandinavian plants 81-82. Chenopodium L}, journal = {Bot. Notiser}, volume = {125}, year = {1972}, month = {1972///}, pages = {283 - 286}, author = {L. Engstrand and M. Gustafsson} } @article {7171, title = {Drawings of Scandinavian plants: 86-88. Chenopodium L}, journal = {Bot. Notiser}, volume = {126}, year = {1973}, month = {1973///}, pages = {135 - 141}, author = {L. Engstrand and M. Gustafsson} }